Iran conducted attacks on Kuwaiti oil refineries Thursday and Friday, striking an operating unit at the Mina Al-Ahmadi Refinery and an operating unit at the Mina Abdullah Refinery Thursday and following up with another strike on a refinery on Friday.

The Kuwait Petroleum Corporation said that six firefighting teams were deployed to fight the blazes, which it said were small and were quickly contained. The company said it implemented measures to ensure the safety of its employees and equipment. No injuries were reported.

The strikes on the refineries follow a string of attacks launched by Iran targeting military facilities. Most were intercepted by Kuwaiti defense systems.

Iran claims it is targeting U.S. military bases and interests in the region, though it has conducted relentless attacks on civilian and residential infrastructure in Gulf states since the war began.