A U.S. military outpost in southern Syria was hit by three attack drones early Friday, injuring two members of the American-backed Syrian Free Army.
Two of the drones were shot down by coalition forces, but the third hit the compound of the At-Tanf Garrison. No U.S. military personnel were hurt, but two militia fighters required medical treatment, the U.S. Central Command said in a news release.
"Attacks of this kind are unacceptable -- they place our troops and our partners at risk and jeopardize the fight against ISIS," CENTCOM spokesman Joe Buccino said.
The targeted base houses American forces and members of the militia near the country's remote desert border with Jordan and Iraq.
The attack came two days after CENTCOM reported capturing an Islamic State operative in eastern Syria. That helicopter operation was carried out Wednesday in partnership with the Kurdish-led Syrian Democratic Forces.