ATMEH, Syria (AP) -- U.S. special forces carried out what the Pentagon said was a large-scale counterterrorism raid in northwestern Syria early Thursday. First responders at the scene reported 13 people were killed, including six children and four women.
Residents said helicopters flew overhead and U.S. forces clashed with gunmen for more than two hours around a two-story house surrounded by olive trees. They described continuous gunfire and explosions that jolted the sleepy village of Atmeh near the Turkish border, an area dotted with camps for internally displaced people from Syria's civil war.
The Pentagon did not identify the target of the raid. "The mission was successful," Pentagon press secretary John Kirby said in a brief statement. "There were no U.S. casualties. More information will be provided as it becomes available."
A journalist on assignment for The Associated Press and several residents said they saw body parts scattered near the site of the raid, a house in Syria's rebel-held Idlib province. Most residents spoke on condition of anonymity for fear of reprisals.
It was the largest raid in the province since the 2019 Trump-era U.S. assault that killed the Islamic State leader Abu Bakr al-Baghdadi.
An Iraqi intelligence official in contact with the U.S.-led coalition said Thursday's target was a high-ranking militant leader whose identity will be released by the White House later in the day. Information suggests he may be al-Baghdadi's successor, the current IS leader known as Abu Ibrahim al-Hashimi al-Qurayshi, the official added. He spoke on condition of anonymity to divulge sensitive information.
Idlib is largely controlled by Turkish-backed fighters but is also an al-Qaida stronghold and home to several of its top operatives. Other militants, including extremists from the rival IS group, have also found refuge in the region.
"The first moments were terrifying, no one knew what was happening," said Jamil el-Deddo, a resident of a nearby refugee camp. "We were worried it could be Syrian aircraft, which brought back memories of barrel bombs that used to be dropped on us," he added, referring to crude explosives-filled containers used by President Bashar Assad's forces against opponents during the Syrian conflict.
The top floor of the house was almost totally destroyed in Thursday's raid, with the ceiling and walls knocked out.
Blood could be seen on the walls and floor of the remaining structure, which contained a wrecked bedroom with a child's wooden crib on the floor. On one damaged wall, a blue plastic children's swing was still hanging. The kitchen was blackened with fire damage.
The opposition-run Syrian Civil Defense, first responders also known as the White Helmets, said 13 people were killed in shelling and clashes that ensued after the U.S. commando raid. They included six children and four women, it said.
The Britain-based Syrian Observatory for Human Rights, an opposition war monitor, also said the strike killed 13 people, including four children and two women. Ahmad Rahhal, a citizen journalist who visited the site, reported seeing 12 bodies.
The Pentagon provided no details on casualties in the raid.
The Observatory said the troops landed in helicopters. Residents and activists described witnessing a large ground assault, with U.S. forces using megaphones urging women and children to leave the area.
Omar Saleh, a resident of a nearby house, said his doors and windows started to rattle to the sound of low-flying aircraft at 1:10 a.m. local time. He then heard a man, speaking Arabic with an Iraqi or Saudi accent through a loudspeaker, urging women to surrender or leave the area.
"This went on for 45 minutes. There was no response. Then the machine gun fire erupted," Saleh said. He said the firing continued for two hours, as aircraft circled low over the area.
Taher al-Omar, an Idlib-based activist, said he witnessed clashes between fighters and the U.S. force. Others reported hearing at least one major explosion during the operation. A U.S. official said that one of the helicopters in the raid suffered a mechanical problem and had to be blown up on the ground. The U.S. official spoke on condition of anonymity to discuss details of the military operation.
The military operation got attention on social media, with tweets from the region describing helicopters firing around the building near Atmeh. Flight-tracking data also suggested that multiple drones were circling the city of Sarmada and the village of Salwah, just north of the raid's location.
The U.S. has in the past used drones to kill top al-Qaida operatives in Idlib, which at one point was home to the group's biggest concentration of leaders since the days of Osama bin Laden in Afghanistan. The fact that special forces landed on the ground suggest the target was believed to be of high value.
A similar attack in Pakistan, in 2011, killed bin Laden.
Thursday's clandestine operation came as the Islamic State group has been reasserting itself in Syria and Iraq with increased attacks.
Last month, it carried out its biggest military operation since it was defeated and its members scattered underground in 2019: an attack on a prison in northeast Syria holding at least 3,000 IS detainees. The attack appeared aimed to break free senior IS operatives in the prison.
It took 10 days of fighting for U.S.-backed, Kurdish-led forces to retake the prison fully, and the force said more than 120 of its fighters and prison workers were killed along with 374 militants. The U.S.-led coalition carried out airstrikes and deployed American personnel in Bradley Fighting Vehicles to the prison area to help the Kurdish forces.
A senior SDF official, Nowruz Ahmad, said Monday that the prison assault was part of a broader plot that IS had been preparing for a long time, including attacks on other neighborhoods in Kurdish-run northeastern Syria and on the al-Hol camp in the south, which houses thousands of families of IS members.
The U.S.-led coalition has targeted high-profile militants on several occasions in recent years, aiming to disrupt what U.S. officials say is a secretive cell known as the Khorasan group that is planning external attacks. A U.S. airstrike killed al-Qaida's second in command, former bin Laden aide Abu al-Kheir al-Masri, in Syria in 2017.