A Royal Navy Merlin Mk4 helicopter crashed near Sourton Down, Devon, on the early hours of June 3, killing all three crew members,including Lieutenant Lily‑Mae Fisher, the Navy’s only female commando . The incident, which sparked a nationwide outpouring of grief, has prompted an investigation into the cause of the crash.

Merlin Mk4’s Sudden Descent Over Sourton Down

The helicopter, described by witnesses as flying at a very low level before plummeting, crashed in a field near the village of Sourton Down. According to the report, the aircraft exploded on impact, leaving debris scattered across the grass and igniting a fire that burned the field around 4 a.m. on June 3.

Lieutenant Fisher: A Trailblazer in the Royal Navy

Lieutenant Lily‑Mae Fisher, 31, grew up in Virginia Water, Surrey, and graduated from Imperial College London in 2016 with a geology degree. After working as an exploration geologist for BP, she joined the Royal Navy in 2018,completing the 16‑week All Arms Commando Course and becoming Britain’s only serving female Royal Navy commando. The Royal Navy called her an "inspiration" to women in the armed forces and a "huge loss".

Crew Members and Community Tributes

The other two crew members were Lieutenant Commander Chris Gayson, 42, from Somerset, and Petty Officer Owen Green, 24, from Hampshire. Families of the deceased praised their bravery, noting that the crew avoided nearby homes and a Travelodge hotel, saving lives. Residents of Sourton Down hailed the trio as heroes.

Investigation Underway,Royal Family Responds

Investigators arrived at the crash site on June 4, 2026, amid the debris. Sir Gwyn,head of the Navy, announced that an investigation is underway and that the King would write privately to the fammilies. The Princess of Wales also expressed her condolences, according to the source.

Unanswered Questions: Pilot Error or Mechanical Failure?

While witnesses reported the helicopter was flying low before it crashed, the exact cause remains unclear. The investigation has yet to determine whether pilot error , mechanical failure, or another factor contributed to the tragedy. The Royal Navy has not yet released detailed findings.