A British man has reportedly been stabbed to death in Portugal while taking part in an online challenge.

The unnamed 36-year-old’s body was found in the middle of a forest near the town of Pedrogao Grande, local media reported.

An unnamed 26-year-old, also understood to be British, has handed himself in to police.

He was among a group of three people who were being interviewed by police concerning the death.

A bladed weapon has also been recovered from the scene.

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The group was reportedly playing an internet challenge believed to have started in Russia, which involves a series of often dangerous challenges and has been linked to numerous deaths around the world.

Local media said there was a disagreement during the game that ended in the death, citing a source from the Republican National Guard.

They reported the group of three people then went to a nearby police station to alert officers.

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The alleged killer was taken into custody and Portugal’s Policia Judiciaria took over the investigation.

Those being questioned by police are thought to be part of a group of foreigners living in a nearby commune.