A British Army officer has died after an incident during a live fire training exercise in Northumberland, the Ministry of Defence (MoD) has confirmed.
Captain Philip Gilbert Muldowney, 25, died on Sunday at an army training site. The MoD confirmed his death on Tuesday and said its thoughts were with his family and loved ones.
An Army spokesperson said the circumstances surrounding Captain Muldowney’s death are under investigation and that it would be inappropriate to comment further at this stage.
Captain Muldowney served as a fire support team commander with the 4th Regiment Royal Artillery. He joined the British Army in January 2020 after attending the Royal Military Academy Sandhurst and was commissioned into the Royal Artillery in December of that year.
During his service, he held multiple roles and was deployed to Estonia for six months from November 2021.
In January 2025, Captain Muldowney was seriously injured while undertaking a commando course and was ordered to pause his duties to undergo rehabilitation. He later returned to active service following his recovery.
Tributes have been paid by fellow service personnel, who described him as a dedicated officer, a trusted friend and a deeply kind individual.
Lieutenant Colonel Henry Waller, Commanding Officer of the 4th Regiment Royal Artillery, described Captain Muldowney, known as Gilbert, as “an immensely enthusiastic officer who embraced life with a vigour that inspired everyone around him”.
“Always full of ideas and never without a bright smile, Gilbert approached every challenge wholeheartedly, whether in camp or out in the field,” he said.
Lt Col Waller added that Captain Muldowney was an “outstanding officer who consistently put his soldiers first”, describing him as a “rising star” within the regiment and the wider Army. He said he would be remembered for his easy-going nature, boundless energy and infectious sense of humour.
Captain Duncan Morrison, who met Captain Muldowney in 2021, said his colleague “lived life to the fullest and made lasting connections with everyone he met”.
Captain Helen Brackenbury said Captain Muldowney served those under his command “authentically”, adding that “every day he displayed a level of spirit I continue to be in awe of”.
Major Martin Simms described him as “an absolute credit to his family and his friends”, while Captain Ross Beeby said his loss was felt “deeply by his unit, his peers and all who had the privilege of serving and spending time with him”.
