Britain’s Royal Marines has opened a bullying probe after a young recruit was found dead of an apparent suicide over the weekend.

Connor Clark was found dead Saturday morning on train tracks near the Lympstone Village railway station after just three weeks of training, The Sun reported.

His friends told the outlet that Clark was repeatedly hounded by a corporal who is already being investigated for allegedly abusing other recruits.

“The corporal is a sadistic bully,” a source told the outlet. “He’s just been screaming at Connor, putting him in press ups for 45 minutes.”

The Royal Navy has since opened a new investigation following Clark’s death, a commando source told The Sun.

The Ministry of Defense confirmed Clarke’s death in a statement to the publication, but did not comment on a cause or the investigation.

Clark’s mother, Tracy, said in a Facebook post that her son committed suicide, according to the report.

“This beautiful son, brother and friend Connor Clark tragically took his own life whilst following his dream during Royal Marines Commando training,” the mother said.

“I spoke to him ten hours prior and there were no signs. I write this with a broken heart and solely to share as a warning … Hug your precious kids close,” she said.