A Royal Marine with 173 confirmed kills of Taliban insurgents in Afghanistan is the deadliest sniper in the world, it has been claimed.
If correct, the unnamed Marine's toll would surpass that of Chris Kyle, the US Navy Seal whose exploits are portrayed in the Oscar-nominated film American Sniper.
The corporal, who is still serving, made the majority of his kills during a single six-month tour of Helmand province eight years ago. His actual number of kills could be far higher, sources told the Sun.
The identity of the sniper, a married father who grew up in southern England, is a closely guarded secret for fear he will become a target for terrorists.
One source told the paper: "He's very professional and humble, but with a gun in his hands this bloke is deadlier than the plague."