U.S. launches airstrikes in Syria after drone kills U.S. worker

BEIRUT (AP) — A strike Thursday by a suspected Iranianmade drone killed a U.S. contractor and wounded six other Americans in northeast Syria, and U.S. forces retaliated with airstrikes on sites in Syria used by groups affiliated with Iran's Revolutionary Guard, the Pentagon said. Activists said the U.S. bombing killed at least four people.

While it's not the first time the U.S. and Iran have traded strikes in Syria, the attack and the U.S. response threaten to upend recent efforts to deescalate tensions across the wider Middle East, whose rival powers have made steps toward détente in recent days after years of turmoil.

U.S. Defense Secretary Lloyd Austin said in a statement that the American intelligence community had determined the drone was of Iranian origin, but offered no other immediate evidence to support the claim. The drone hit a coalition base in the northeast Syrian city of Hasaka. The wounded included five American service members and a U.S. contractor.

Austin said the strikes were a response to the drone attack "as well as a series of recent attacks against coalition forces in Syria" by groups affiliated with the Revolutionary Guard.

Iran relies on a network of proxy forces through the Mideast to counter the U.S. and Israel, its arch regional enemy. The U.S. has had forces in northeast Syria since 2015, when they deployed as part of the fight against the Islamic State group, and maintains some 900 troops there, working with Kurdish-led forces that control around a third of Syria.

The U.S. airstrikes hit targets in three towns in eastern Syria, activists said. Overnight, videos on social media purported to show explosions in Deir el-Zour, a strategic province that borders Iraq and contains oil fields. Iranian-backed militia groups and Syrian forces control the area, which also has seen suspected airstrikes by Israel in recent months allegedly targeting Iranian supply routes.

According to a defense official, the U.S. counter strikes were conducted by F-15 fighter jets flying out of al-Udeid Air Base in Qatar.