Tributes have been paid to a young Limerick man who died while holidaying with a group of friends on the Greek island of Ios.

Niall O'Brien, who was in his early 20s and from Castletroy, was studying Financial Maths at the University of LImerick.

In an email to the campus community, UL President Professor Kerstin Mey said all of their thoughts and prayers are with Mr O'Brien's family.

"I am so very sad to inform you of the sudden and tragic death of UL student Niall O'Brien, Castletroy, Limerick, who was due to commence Year 4 of his BSc in Financial Maths next week.

"Niall is the son of our UL colleague Anne O'Brien who works in the Education and Health Sciences Faculty Office. Our thoughts and prayers are with Anne, her husband Mike and Niall's three brothers, Cian, Eoin and Alan.

"Ar dheis Dé go raibh a anam dílis".

Mr O'Brien was a well known sportsman who played GAA with Broadford, and was a member of Castletroy Golf Club.

A spokesman at the Department of Foreign Affairs confirmed that it "was aware of the case and is providing consular assistance" to the family.

"As with all consular cases, the department does not comment on the details of any specific case".