Nairobi, Kenya ? U.S. officials say an American military drone has crashed at an airport on the island nation of Seychelles.

The U.S. Embassy in Mauritius said the U.S. Air Force MQ-9 Reaper drone was not armed and that the crash on Tuesday morning caused no injuries.

It said that the airport’s runaway has reopened for normal traffic. The U.S. military and the civilian aviation authority of Seychelles are coordinating to remove the debris of the drone.

The U.S. has used drones from the Seychelles to target al-Qaida linked militants in Somalia.

The cause of the crash is under investigation.