LONDON (AP) — A jet belonging to the British military's Red Arrows aerobatic team crashed Tuesday at an air base in Wales, the air force and emergency services said. There was no immediate word on casualties.

The Royal Air Force confirmed there had been an incident involving a Hawk jet, the type used by the Red Arrows. It said "we are investigating the incident and it would be inappropriate to comment further at this stage."

The Welsh Ambulance Service said it was called "to reports an aircraft had crashed" at the RAF Valley base near Holyhead in north Wales.

Founded in 1965, the Red Arrows are famous for their airborne stunts; red, white and blue vapor trails; dramatic flybys and trademark diamond formation. Their red single-engine jet trainers are a familiar sight at air shows and military events.

The team has had few fatal accidents, but two Red Arrows pilots died in 2011 — one when his jet crashed after taking part in an air show in southern England and the other when he was ejected from his aircraft while it was on the ground.