The US military has joined an investigation into a plane that crashed in eastern Afghanistan on Monday.
Local officials initially said the aircraft that came down in Deh Yak district, Ghazni province, belonged to state-owned airline Ariana.
But the airline denied this, prompting questions about the origin of the aircraft and the cause of the crash.
Iranian state media posted footage of what it said was the plane, which it said had US Air Force markings.
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