An angler claims to have caught a fish on his manhood after swimming naked in a Russian river.

A video purports to show the macho fisherman emerging from the water with a grayling attached to his penis.

Moments earlier he had plunged into the water in the nude, despite being warned that it was teeming with fish.

Snap: The unidentified man emerges from the lake with a huge fish attached to his penis

Catch me if you can: The video shows the Russian man going swimming in his birthday suit, despite being warned that there are a lot of fish where he intends to bathe

Commentary on the video says: 'This is a polar region - the land of tough fishermen and strong nibbles.'

The man with the camera, called Alexei, warned: 'Be careful there. There is a hole there underwater.

'I've just caught some grayling there. Take care.'

The naked angler answers: 'I'm not afraid of them.'

The unnamed man's friend films him as he says he is 'not afraid' of swimming with the fish

Seconds later he is seen running out of the water, with the fish appearing to have bit his penis

He plunges into the water but in a few seconds began to swear as the fish got attached to his 'bait'.

The angler runs out of the water, covering his groin with his hands, evidently with a huge live fish attached.

'Look what I've caught on my 'worm'. f***! It could bite it off, f***.'

The fish is shown later on the ground after he removed it.