A British soldier who died in Syria fighting the Islamic State Group was killed by a friendly fire, according to the Department of Defense.
US officials previously reported that Sgt Matt Tonroe was killed on a roadside bomb in 201
However, the Defense Department said the 33-year-old had died from "explosives" following the Allied forces brought themselves.
Sgt. Tonroe was the only British soldier killed in active duty operations against ISIS.
He died together with US Commandant Sgt. Jonathan J. Dunbar in a joint operation with US Special Forces.
Formerly, US officials were held responsible for their death on an improvised explosive device (IED).
An investigation into the explosion in Manbij, northern Syria, however, revealed that Sgt Tonroe was killed by an explosive device carried by a colleague.
Sgt Tonroe, born in Manchester, joined the army in 2004.
After completing his training, he joined the 3rd Battalion of the Parachute Regiment in Colchester, where he served as part of the Sniper Platoon.
During his career He was deployed for operations in Afghanistan and the Middle East.
A Defense Ministry spokeswoman added, "Sgt Matt Tonroe died as a result of an explosion during a military operation." It was initially believed that Sgt Tonro died. He was killed by enemy action, but later investigations revealed that Sgt. Tonroe was killed by the accidental detonation of explosives carried by coalition forces.
"Our thoughts are still with Sgt. Tonroe's family and friends."