People are being warned about the dangers of taking part in the drinking game Neknominate amid fears that it may have resulted in at least three deaths in Wales and Ireland.
Police in Wales investigating the "sudden" death of a 29-year-old man in Cardiff early on Sunday say they "have received information regarding the so-called neck and nominate game".
Last week, Jonny Byrne and Ross Cummings both lost their lives in Ireland after apparently trying to complete their challenges.
It is believed Mr Byrne, 19, drowned after jumping into the River Barrow in Carlow after playing the game.
His death came one day after the body of DJ Ross Cummins, 22, was found in a house in Dublin.