Trump says ‘we will retaliate’ after 3 Americans are killed in Syria attack that the U.S. blames on IS

President Donald Trump talks to reporters as he departs from the South Lawn of the White House, Saturday, Dec. 13, 2025, in Washington, en route to Baltimore to attend the Army-Navy football game. (AP Photo/Jose Luis Magana) (Jose Luis Magana/AP)

DAMASCUS, Syria — U.S. President Donald Trump said Saturday that “we will retaliate” after two U.S. service members and one American civilian were killed in a Syria attack that the U.S. blames on the Islamic State group.

“This is an ISIS attack,” the American president told reporters at the White House before departing for the Army-Navy football game in Baltimore.

He paid condolences to the three Americans killed and said three others who were wounded “seem to be doing pretty well.”

THIS IS A BREAKING NEWS UPDATE. AP’s earlier story follows below.

Two U.S. service members and one American civilian were killed and three other people wounded in an ambush on Saturday by a lone member of the Islamic State group in central Syria, the the U.S. military’s Central Command said.

The attack on U.S. troops in Syria is the first to inflict fatalities since the fall of President Bashar Assad a year ago.

Central Command said in a post on X that as a matter of respect for the families and in accordance with Department of Defense policy, the identities of the service members will be withheld until 24 hours after their next of kin have been notified. The gunman was killed, it said.

Pentagon chief spokesman Sean Parnell said the civilian killed in the attack was a U.S. interpreter. He said the attack targeted soldiers involved in the on-going counter-terrorism operations in the region and is under active investigation.

The shooting took place near historic Palmyra, according to the state-run SANA news agency, which earlier said two members of Syria’s security force and several U.S. service members had been wounded. The casualties were taken by helicopter to the al-Tanf garrison near the border with Iraq and Jordan.

The Britain-based Syrian Observatory for Human Rights said the attacker was a member of the Syrian security force.

Syria’s Interior Ministry spokesman Nour al-Din al-Baba said a gunman linked to IS opened fire at the gate of a military post. He added that Syrian authorities are looking into whether the gunman was an IS member or only carried its extreme ideology. He denied reports that suggested that the attacker was a security member.

U.S. Defense Secretary Pete Hegseth posted on X: “Let it be known, if you target Americans -- anywhere in the world -- you will spend the rest of your brief, anxious life knowing the United States will hunt you, find you, and ruthlessly kill you.”

The U.S. has hundreds of troops deployed in eastern Syria as part of a coalition fighting IS.

Last month, Syria joined the international coalition fighting against the IS as Damascus improves its relations with Western countries following the ouster of Assad when insurgents captured his seat of power in Damascus.

The U.S. had no diplomatic relations with Syria under Assad, but ties have warmed since the fall of the five-decade Assad family rule. The interim president, Ahmad al-Sharaa, made a historic visit to Washington last month where he held talks with U.S. President Donald Trump.

IS was defeated on the battlefield in Syria in 2019 but the group’s sleeper cells still carry out deadly attacks in the country. The United Nations says the group still has between 5,000 and 7,000 fighters in Syria and Iraq.

U.S. troops, which have maintained a presence in different parts of Syria -- including Al-Tanf garrison in the central province of Homs -- to train other forces as part of a broad campaign against IS, have been targeted in the past. One of the deadliest attacks occurred in 2019 in the northern town of Manbij when a blast killed two U.S. service members and two American civilians as well as others from Syria while conducting a patrol.

By Samar Kassabali, Bassem Mroue And Seung Min Kim.

Mroue reported from Beirut and Seung Min Kim from Washington.