The Incident Unfolds in the Early Hours

In the predawn darkness of June 3, 2026, a routine training flight turned tragic when a Royal Navy Merlin Mk4 helicopter crashed in a field at Sourton Down, near Okehampton in Devon. Emergency services received reports around 3:45 BST, and responders found the aircraft had come down during what the Ministry of Defence described as a helicopter training exercise. The incident occurred close to the Okehampton battle camp, a facility on the edge of Dartmoor used for preparing Merlin crews from the Commando Helicopter Force.

Witnesses reported hearing the helicopter overhead before seeing a bright red flash as it struck the ground. The crash site drew a major emergency response, with the area cordoned off for safety and investigation. Officials quickly confirmed that all three crew members on board had died.

Details of the Aircraft and Mission

The helicopter involved was a Merlin Mk4, a versatile medium-lift aircraft operated by the Royal Navy's Fleet Air Arm. These helicopters support commando operations and are known for their reliability in demanding environments. The Mk4 variant features advanced avionics and is typically crewed by four, though this training flight carried three personnel. The aircraft was based at facilities including RNAS Yeovilton in Somerset and RNAS Culdrose in Cornwall, with the training area near Okehampton providing realistic terrain for exercises.

Training flights like this one form a core part of preparing aircrew for operational deployments. The Merlin Mk4 plays a key role in the Commando Helicopter Force, enabling troop transport, logistics, and support in varied conditions. The exercise was described by the Royal Navy as standard, highlighting the inherent risks even in controlled training scenarios.

The Three Personnel Remembered

The victims have been named as Lieutenant Commander Chris Gayson, aged 42, Lieutenant Lily-Mae Fisher, aged 31, and Petty Officer Owen Green, aged 24. Lt Cdr Gayson and Lt Fisher were from 846 Naval Air Squadron, while PO Green served with 845 Naval Air Squadron. Each brought extensive experience and dedication to their roles.

Lt Lily-Mae Fisher was Britain's only serving female naval commando and was weeks away from qualifying as a pilot. Her senior, Lt Cdr Chris Gayson, had 18 years of service with the Navy and was praised for his exemplary leadership. Petty Officer Owen Green was remembered by his family as someone who died doing what he loved, having dreamed of a naval aviation career his entire life. The Royal Navy described the loss of these three remarkable individuals as a huge tragedy and a profound blow to the service.

Official Statements and Immediate Response

The Ministry of Defence issued a statement confirming the deaths during the training exercise near Sourton, Devon. A Royal Navy spokesperson noted that the families had been informed and requested privacy. The head of the Navy, General Sir Gwyn Jenkins, expressed deep sadness, describing the crew as dedicated professionals.

Defence Secretary John Healey called the three "dedicated and highly valued members of their squadrons who embodied the best of our Armed Forces." Emergency services, including police and fire crews, secured the scene, and an investigation was launched immediately to determine the circumstances.

Photo by Andrew Palmer on Unsplash

Tributes from the Royal Family and Beyond

King Charles III stated he was "profoundly shocked" by the deaths. The Princess of Wales shared her sadness at the loss of three service personnel from the Fleet Air Arm. These messages underscored the national significance of the tragedy and the respect held for those serving in the armed forces.

Memorial services have since taken place in Okehampton, allowing the local community and service members to pay their respects. Colleagues and families have highlighted the professionalism and commitment of the fallen crew.

The Investigation Process

Authorities, including military investigators and civilian bodies, are examining the wreckage and flight data to establish what led to the crash. No cause has been publicly confirmed, and officials have emphasised that a thorough review is underway. Such investigations typically involve detailed analysis of maintenance records, weather conditions, and operational procedures.

The proximity to established training grounds means the site was familiar to crews, yet every flight carries unique variables. Updates will be shared as appropriate, respecting the families' wishes for a period of grace.

Context of Royal Navy Aviation Training

The Commando Helicopter Force conducts rigorous preparation to ensure readiness for real-world missions. Exercises near Dartmoor provide varied terrain that simulates operational challenges. The Merlin Mk4's capabilities make it central to these efforts, supporting amphibious and land-based operations.

Training accidents, while rare, prompt reviews of safety protocols across the service. The Royal Navy maintains high standards, with continuous investment in equipment and personnel development.

Impact on the Service and Community

The loss has resonated deeply within the naval community and across Devon. Local residents have expressed shock at the incident so close to home. Support for the families has been coordinated through official channels, with tributes focusing on the individuals' contributions.

Broader discussions around military training safety continue, though specifics await the investigation's findings. The event serves as a reminder of the dedication required of service personnel.

Photo by Tommaso Calderara on Unsplash

Looking Ahead

As the investigation progresses, the Royal Navy will likely implement any recommended changes to enhance safety. The service has a long tradition of learning from incidents to protect its people. Families and colleagues will continue to honour the memory of Lt Cdr Gayson, Lt Fisher, and PO Green through private and public remembrances.

The incident highlights the risks inherent in defence operations while affirming the value placed on those who serve. Further details are expected in due course from official sources.

For more on UK defence matters, readers may visit BBC coverage of the incident or the Guardian's reporting on the victims. Additional context on naval operations is available from Sky News updates.