An army officer has died during a training exercise, the Ministry of Defence (MoD) has confirmed.
Captain Philip Gilbert Muldowney died following a live firing incident at the Otterburn Training Area, Northumberland, on Sunday.
The death of Capt Muldowney, who served as a fire support commander within 129 (Dragon) Battery of the 4th Regiment Royal Artillery, is being investigated.
An army spokesperson said: "The circumstances surrounding Capt Muldowney's death are being investigated, and it would be inappropriate to comment any further at this time."
Capt Muldowney's commanding officer paid tribute to the 25-year-old, highlighting his "leadership, courage, and sense of duty".
Commanding officer of 4th Regiment Royal Artillery, Lieutenant Colonel Henry Waller said: "It is with deep sadness that we announce the death of Captain Philip Gilbert Muldowney.
"Known to all simply as Gilbert, he was an immensely enthusiastic officer who embraced life with a vigour that inspired everyone around him.
"Professionally, Gilbert was an outstanding officer who consistently put his soldiers first. He led from the front in all that he did, a quality that defined his character. His leadership, courage, and sense of duty earned him the respect and admiration of all who served alongside him.
"He served all those under his command in a highly authentic manner, unapologetically himself. Every day he displayed a level of spirit I continue to be in awe of."
He added: "Gilbert was an unforgettable character and a rising star within the army and the regiment.
"His loss is deeply felt by his comrades and friends, and our thoughts and prayers are with his family at this most difficult time."
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Captain Helen Brackenbury said: "Gilbert was a truly kind person, highly competent and endearingly joyful.
"He served all those under his command in a highly authentic manner, unapologetically himself - every day he displayed a level of spirit I continue to be in awe of. It has been the pleasure of my career to have served alongside him."
Capt Muldowney joined the army six years ago, commissioning into the Royal Artillery after attending Sandhurst.
(c) Sky News 2026: Army investigates death of 'outstanding' officer during live firing training exercise
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