A B-1 bomber that landed at Al Udeid Air Force Base and then caught fire while taxiing was safely evacuated by all four crew members, the U.S. Air Force confirmed to FOX News.

The Air Force operates out of the air base, but Qatar has an agreement with the U.S. military not to reveal that fact.

In 2007 the Air Force declared the B-1 the "Most Valuable Plane" of Operation Iraqi Freedom.

The unit cost for the bomber is $283.1 million.