A Red Arrows Hawk aircraft crashed and burst into flames on the runway at RAF Valley in Anglesey on Tuesday afternoon.
It is believed the pilot ejected before the aircraft crashed, and the Wales Air Ambulance was called to the airfield.
However the Hawk is a two seat aircraft and it is not known whether a passenger was in the back seat at the time of the accident.
So far there have only been reports of one parachute.
Air accident investigators will be conducting an examination of the wreckage to discover the cause of the accident.
Video by Kerry Roberts
North Wales Fire and Rescue Service confirmed they were called to an incident involving an aircraft at 1.56pm.
We are aware of an incident today at RAF Valley involving a Hawk aircraft. We are investigating the incident.
— Ministry of Defence (@DefenceHQ) March 20, 2018
The Welsh Ambulance Service were called shortly before 1.30pm and an emergency ambulance and a Wales Air Ambulance are currently at the scene.
A spokesperson for the Ministry of Defence confirmed that they are investigating the incident.
The world-famous aerobatic team performs stunts and daredevil displays, and flies the distinctive Hawk fast-jets.
RAF Valley is located near Holyhead, Anglesey. Picture: Google
The world-famous aerobatic team performs stunts and daredevil displays, and flies the distinctive Hawk fast-jets.
We are aware of an incident today at RAF Valley involving a Hawk aircraft. We are investigating the incident.
— Red Arrows (@rafredarrows) March 20, 2018
Based at RAF Scampton in Lincolnshire, all Red Arrows pilots have flown operationally in frontline aircraft before joining the display team.
RAF Valley is the base where RAF fighter pilots are trained, using Hawk aircraft similar to those used by the Red Arrows.
Image of a Red Arrows Hawk aircraft
Prior to each season the Red Arrows undertake months of training to develop and refine the various displays they will utilise over the coming summer.
More to follow on this incident
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