Feb. 12 (UPI) -- A coalition patrol faced small arms fire in Qamishli in northeast Syria on Wednesday, but was able to return to its base, U.S. military officials said.
A Twitter message posted by Operation Inherent Resolve spokesman Col. Myles B. Caggins III did not say if the patrol suffered any casualties in the attack.
The patrol came upon a checkpoint manned by Syrian government forces in Qamishli.
"After the coalition patrol issued a series of warnings to de-escalate, it came under small arms fire from unknown individuals," the statement said. "In self-defense, Coalition troops returned fire. The situation was de-escalated and is under investigation."
Tensions in the region have remained high after a U.S. drone strike last month killed Iran's top military commander and Iran responded by firing missiles in an Iraq military base that housed U.S. troops.