The search has continued for a 21-year-old Irish soccer fan missing in Poland since Saturday night.

The Irish ambassador to Poland, Eugene Hutchinson, has gone to Bydgoszcz to liaise with the Polish authorities co-ordinating the search for Co Wicklow man James Nolan.

A spokesman said there have been no developments in the case and the young man's whereabouts are still unknown.

The environmental engineering student from Blessington was last seen on Saturday night in Bydgoszcz, a town about 130km northeast of Poznan.

He and his friends, who were travelling in a camper van, stopped in Bydgoszcz on their way back from Gdansk to Poznan when Mr Nolan became separated from the group.

Speaking from Poland, FAI President Paddy McCaul has said his thoughts and prayers and those of the Irish team are with Mr Nolan's family at this time.

Gardaí based in Poland for Euro 2012 are liaising with local police and Irish Consulate staff for the search.

A police spokeswoman in Bydgoszcz said the young man's friends informed them he was missing on Sunday evening.

Speaking to RTÉ, Mr Nolan's father, Jimmy, appealed to anyone who knows anything about his son's whereabouts to contact them or the gardaí.

His uncle, Pat, said it was very out-of-character for his nephew to disappear.

He said he was a sensible young man who had texted or phoned home almost every day since setting off on 7 June.

A local river was searched yesterday and leaflets were distributed with the young man's picture.

An appeal was made at half-time in Ireland’s match against Italy last night and his picture was displayed on the big screens in the stadium.

Police have also checked hospitals and spoken to local taxi drivers.

Anyone with information can contact the Irish Consulate in Poznan on 0048 880529105, gardaí or the Department of Foreign Affairs on 1890 426700.