Amid concerns the war in Gaza could lead to a regional escalation, Reuters has reported that the Ain al-Asad air base in western Iraq, which houses U.S. troops, has come under missile and drone attack.

Citing two security forces, Reuters reported it was not yet clear if there were casualties in the attack. It was the third such attack on a base in Iraq with U.S. soldiers in less than 24 hours.

The news agency, citing two U.S. officials, also reported that a U.S. Navy warship travelling near Yemen had intercepted multiple projectiles. The sources said the warship did not appear to be the target of the attack, and that the projectiles were passing in its vicinity.

The Pentagon has confirmed that a U.S. warship shot down three missiles and drones in the northern Red Sea.

It was not immediately clear who was behind the attacks or if they were carried out in response to Israel’s relentless bombardment of Gaza, which has so far led to the killing of 3,859 Palestinians.