A Royal Air Force Chinook was forced to land in a field in south-west Wales after an "incident" during a training sortie.
A spokesperson for the RAF said the aircraft sustained "minor damage", which included a smashed window, while one crew member has "minor injuries due to some broken glass".
The incident, which happened at around 9pm on Tuesday evening, is under investigation.
The Chinook, from RAF Odiham in Hampshire, landed in a field near the village of Llangynin, Carmarthenshire, after striking power lines and causing a power cut in the area.
The incident is thought to have happened during a flight to Devon.
Engineers were sent to the site to assess the aircraft, before determing how to recover it.