Police in London say they are concerned for the welfare of a Galway teenager, who has been missing since Tuesday night.
Eighteen-year-old Patrick Halpin, a DCU student from Loughrey, was last seen in Zoo nightclub off Leicester Square.
He was on a college trip to London, but left the club to go for food and did not return to his hostel.
When he was last seen he was wearing blue jeans and a blue T-shirt.
Anyone with information is asked to call Crimestoppers on 0800 555 111 from the UK.
Patrick's family have been using social media to raise awareness of his disappearance.