The Air Force says the bomber was taxiing after landing at al-Udeid Air Base in Qatar and caught fire. Few details are available, although the Air Force says the aircraft was involved in a ground incident.
A State Department official says the B-1 bomber caught fire at the end of a runway and some of its munitions exploded, reports CBS News State Department reporter Charles Wolfson.
Al-Udeid is the headquarters of all American air operations in the Middle East. The incident is under investigation.
In February, a B-2 stealth bombershortly after taking off from an air base in Guam, the first time one crashed, but both pilots ejected safely.