BAGHDAD (AP) — Islamic State militants continued their campaign targeting cultural heritage sites in territories they control in northern Iraq, looting and damaging the ancient city of Hatra just one day after bulldozing the historic city of Nimrud, according to Iraqi government officials and local residents. The destruction in Hatra comes as the militant Islamic group fended off an Iraqi army offensive in Saddam Hussein’s hometown and fought pitched battles in eastern Syria in an area populated by predominantly Christian villages.

Iraqi officials in the northern city of Mosul said Saturday that Islamic State militants have begun demolishing Hatra, a move UNESCO described as “cultural cleansing.”

An official with the ministry of tourism and antiquities’ archaeological division in Mosul told The Associated Press that multiple residents living near Hatra heard two large explosions Saturday morning, then reported seeing bulldozers begin demolishing the site. He spoke anonymously for fear of reprisal.

Saeed Mamuzini, a Kurdish official from Mosul, told the AP that the militants had begun carrying away artifacts from Hatra as early as Thursday and on Saturday, began to destroy the 2,000-year-old city.

Hatra, located 110 kilometers (68 miles) southwest of the city of Mosul, was a large fortified city during the Parthian Empire and capital of the first Arab kingdom. A UNESCO world heritage site, Hatra is said to have withstood invasions by the Romans in A.D. 116 and 198 thanks to its high, thick walls reinforced by towers. The ancient trading center spanned 6 kilometers (4 miles) in circumference and was supported by more than 160 towers. At its heart are a series of temples with a grand temple at the center — a structure supported by columns that once rose to 100 feet.

“The destruction of Hatra marks a turning point in the appalling strategy of cultural cleansing underway in Iraq,” said Irina Bokova, the director-general of UNESCO, and Abdulaziz Othman Altwaijri, director general of the Islamic Educational, Scientific and Cultural Organization (ISESCO) in a joint statement.

“With this latest act of barbarism against Hatra, (the IS group) shows the contempt in which it holds the history and heritage of Arab people.”

Meanwhile in Syria, Islamic State militants attacked a string of predominantly Christian villages on Saturday, touching off heavy clashes with Kurdish militiamen and their local allies, activists said.

The attack began around dawn and targeted at least three villages near the town of Tal Tamr along the Khabur River in Hassakeh province. The Islamic State group kidnapped more than 220 Assyrian Christians from the same area last month after overrunning several farming communities on the southern bank of the river.

The fighting Saturday was focused in villages on the northern bank of the river as the militants press to capture Tal Tamr, a strategic crossroads some 35 kilometers (20 miles) from the city of Hassakeh, said Osama Edwards, director of the Assyrian Network for Human Rights.

“The battles are now very intensive, very violent,” said Edwards, who is based in Sweden. “Tal Tamr is the main goal of the Islamic State, to give them the corridor to the eastern border to Iraq.”

The Islamic State group currently controls about a third of Iraq and Syria. The Sunni extremist group has been campaigning to purge ancient relics they say promote idolatry that violates their fundamentalist interpretation of Islamic law. A video they released last week shows them smashing artifacts in the Mosul museum and in January, the group burned hundreds of books from the Mosul library and Mosul University, including many rare manuscripts.

The majority of the artifacts destroyed in the Mosul Museum attack were from Hatra.

On Friday, the group looted artifacts from Nimrud, a 3,000-year-old city in Iraq, and bulldozed it in a move United Nations Secretary General Ban Ki-Moon declared “a war crime.”

Iraqi Tourism and Antiquities Minister Adel Shirshab told the AP Saturday that many feared Hatra would suffer the same fate as Nimrud. “This is not unusual (behavior) for Daesh,” Shirshab said, using the Arabic acronym for the group.

A statement on the ministry’s Facebook page Saturday said the government is investigating reports of the attack on Hatra, noting that the global community should hasten its response to the crisis in Iraq in order to prevent these types of atrocities.

Baghdad-based archaeology researcher Junaid Amer Habib said that the destruction of the archaeological sites and artifacts could be “a cover up operation” to disguise efforts to smuggle and sell precious antiquities.

“These looted artifacts could be a main source of cash for the IS group which lacks cash,” Habib added. “The money generated from such an operation will provide the militants with weapons and salaries.”

Habib said the international community should regulate the illegal trade of precious antiquities on the black market in order to prevent the sale of Iraqi artifacts by the IS group.

Last year, the militants destroyed the mosque believed to be the burial place of the Prophet Younis, or Jonah, as well as the Mosque of the Prophet Jirjis — both revered ancient shrines in Mosul. They also threatened to destroy Mosul’s 850-year old Crooked Minaret, but residents surrounded the structure, preventing the militants from approaching.

A U.S.-led coalition has been striking the Islamic State group since August and is preparing a large-scale operation to retake the city of Mosul. But U.S. and Iraqi officials have been cautious about setting a timeline for preparing Iraq’s embattled military for the campaign.

Meanwhile a combined force of Iraqi government troops and Iranian-backed Shiite militias have begun a push to dislodge the Islamic State group from Saddam Hussein’s hometown of Tikrit, about 130 kilometers (80 miles) north of Baghdad.

U.S. Army Gen. Martin Dempsey, chairman of the Joint Chiefs of Staff, said during a current tour of the Middle East that he expected the Tikrit campaign to be successful. Dempsey was asked by reporters traveling with him overnight Friday from Washington to Bahrain whether he believes IS will be pushed out of Tikrit.

“Yeah, I do,” he said. “The numbers are overwhelming.”

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Associated Press writers Ryan Lucas in Beirut, Robert Burns in Manama, Bahrain and Salar Salim in Irbil, Iraq contributed to this report.

North Carolina’s environment secretary has urged a federal agency not to sell wind energy leases within 24 miles of the state’s coast, a limit that advocates say would largely block wind farms.

The Sierra Club circulated the Feb. 23 comments of N.C. Department of Environment and Natural Resources Secretary Donald van der Vaart to the federal Bureau of Ocean Energy Management.

The bureau identified 307,000 acres off North Carolina’s coast for potential wind development in August. It was a step toward issuing the first commercial leases off a state with the nation’s best offshore wind resources.

One of the three areas identified has its closest edge 24 miles off Kitty Hawk on the Outer Banks. The two others are well within that 24-mile range.

One area begins 10 miles from Wilmington, and the other starts 15 miles off Bald Head Island near Southport, on the state’s southern tip.

“The practical effect would be that North Carolina would not see any offshore wind development for quite a while,” said Brian O’Hara of the Southeastern Wind Coalition, which promotes wind development.

Building wind farms far from shore drives up the costs of construction and the cables that would bring energy ashore, O’Hara said, and makes turbines harder to reach for operators.

DENR said Friday that it “fully supports offshore energy development,” including wind.

The department said in a statement that it has worked with the federal bureau to pursue offshore energy and protect coastal and ocean waters, avoid navigational and military conflicts, and preserve coastal communities’ economies.

“We have voiced consistent concerns and sought similar protections for both offshore wind and offshore oil and gas development,” it said.

The federal bureau has said the three North Carolina offshore areas were chosen because they protect views and sensitive habitat and don’t conflict with other uses.

The National Park Service has asked the bureau to keep wind areas at least 34 miles from the historic Bodie Island Lighthouse, south of Kitty Hawk, to keep turbines out of view. The town of Kitty Hawk wants turbines no closer than 20 miles out.

Van der Vaart’s letter said the two zones near tourist-heavy Wilmington deserve similar protection. He said studies commissioned by New Jersey found significant declines in tourism when energy projects can be seen from shore.

An Obama administration plan for drilling for oil and gas off the Atlantic coast, announced in January, would keep rigs 50 miles offshore.

The federal bureau simulated the visual effects of wind farms from North Carolina’s shoreline in 2012.

It found that turbines 10 miles from shore would be visible, on average, for at least half the day on about one day in three. From 15 miles, average visibility drops to one day in four. From 20 miles, it’s one day in five. Visibility drops further in summer.

The nation’s first commercial wind project, expected to start construction this summer, will be 3 miles off Rhode Island’s Block Island and 16 miles from the mainland.

Sierra Club State Director Molly Diggins said van der Vaart’s letter seems to conflict with Gov. Pat McCrory’s embrace of offshore wind as part of his “all-of-the-above” energy plan.

McCrory spokesman Ryan Tronovitch said the governor still favors that approach.

“Wind, just like other sources of energy, will be very important as we continue to strive for energy independence, and we look forward to further recommendations,” Tronovitch said by email.

Brad Ives, a former assistant secretary of DENR who helped craft legislation on wind-project permitting that McCrory signed into law in 2013, said he was surprised by the letter.

“It seems like it went out of its way to make it difficult, if not impossible, to develop North Carolina’s offshore wind,” said Ives, who was pushed out in January after van der Vaart became secretary.

Henderson: 704-358-5051;

Twitter: @bhender

North Carolina’s environment secretary has urged a federal agency to sell no wind energy leases within 24 miles of the state’s coast, a limit that advocates say would largely block wind farms.

The Sierra Club circulated the Feb. 23 comments of secretary Donald van der Vaart to the federal Bureau of Ocean Energy Management.

The bureau identified 307,000 acres off North Carolina’s coast for potential wind development in August. It was a step toward issuing the first commercial leases off a state with the nation’s best offshore wind resources.

One of the three areas identified has its closest edge 24 miles off Kitty Hawk on the Outer Banks. The two others are well within it.

One area begins 10 miles from Wilmington and the other starts 15 miles off Bald Head Island near Southport, on the state’s southern tip.

“The practical effect would be that North Carolina would not see any offshore wind development for quite a while,” said Brian O’Hara of the Southeastern Wind Coalition, which promotes wind development.

Building wind farms far from shore drives up the costs of construction and cables that would bring energy ashore, O’Hara said, and makes turbines harder to reach for operators.

The Department of Environment and Natural Resources said Friday that it “fully supports offshore energy development,” including wind.

DENR said in a statement it has worked with the federal bureau to pursue offshore energy and protect coastal and ocean waters, avoid navigational and military conflicts and preserve coastal communities’ economies.

“We have voiced consistent concerns and sought similar protections for both offshore wind and offshore oil and gas development,” it said.

The federal bureau has said the three North Carolina offshore areas were chosen because they protect views and sensitive habitat and don’t conflict with other uses.

The National Park Service has asked bureau to keep wind areas at least 34 miles from the historic Bodie Island Lighthouse, south of Kitty Hawk, to keep turbines out of view. The town of Kitty Hawk wants turbines no closer than 20 miles out.

Van der Vaart’s letter said the two zones near tourist-heavy Wilmington deserve similar protection. He said studies commissioned by New Jersey found significant declines in tourism when energy projects can be seen from shore.

An Obama administration plan for drilling for oil and gas off the Atlantic coast, announced in January, would keep rigs 50 miles offshore.

The federal bureau simulated the visual effects of wind farms from North Carolina’s shoreline in 2012.

It found that turbines 10 miles from shore would be visible, on average, for at least half the day on about one day in three. From 15 miles, average visibility drops to one day in four. From 20 miles, it’s one day in five. Visibility drops further in summer.

The nation’s first commercial wind project, expected to start construction this summer, will be 3 miles off Rhode Island’s Block Island and 16 miles from the mainland.

Sierra Club state director Molly Diggins said Van der Vaart’s letter seems to conflict with Gov. Pat McCrory’s embrace of offshore wind as part of his “all-of-the-above” energy plan.

McCrory spokesman Ryan Tronovitch said the governor still favors that approach.

“Wind, just like other sources of energy, will be very important as we continue to strive for energy independence and we look forward to further recommendations,” Tronovitch said by email.

Brad Ives, a former assistant secretary of DENR who helped craft legislation on wind-project permitting that McCrory signed into law in 2013, said he was surprised by the letter.

“It seems like it went out of its way to make it difficult if not impossible to develop North Carolina’s offshore wind,” said Ives, who was pushed out in January after van der Vaart became secretary.

Henderson: 704-358-5051;

Twitter: @bhender