An American warship and several commercial ships faced attacks in the Red Sea on Sunday, the Pentagon said. 

“We’re aware of reports regarding attacks on the USS Carney and commercial vessels in the Red Sea and will provide information as it becomes available,” the Pentagon said.

A U.S. official told the Associated Press the attack began around 10 a.m. in Sanaa, Yemen, and lasted five hours.

Officials did not say where the attacks may have come from.

Yemen’s Iran-backed Houthi rebels have launched several attacks in the Red Sea in recent weeks and has launched drones and missiles toward Israel since the start of the Israel-Hamas war in October.

Last month, Houthis seized an Israel-linked vehicle transport ship in the Red Sea.