A British soldier was killed in an explosion in Afghanistan, the Ministry of Defence has said.
The Royal Marine died in a blast while on foot patrol in Sangin, Helmand Province on Sunday morning. His family have been told.
Spokesman for Task Force Helmand, Lieutenant Colonel James Carr-Smith, said: "It is with deep sorrow I must inform you that a marine from 40 Commando Royal Marines was killed by an explosion in Sangin this morning.
"He was part of a foot patrol in an operation which was being conducted in support of the Afghan National Army when he was struck by an explosion.
"He died in the course of his duty, seeking to provide reassurance and security to the local nationals in Sangin. He will be sorely missed and his sacrifice will not be forgotten."
The marine's death brings the British death toll since operations began in 2001 to 285.