Police in central Poland have drafted in more than 100 officers and specialist divers to hunt for an Irish football fan who has not been seen for more than 48 hours, a spokesman said on Tuesday.
James Nolan was reported missing on Sunday afternoon when he failed to return to his hotel after breaking off from a group of friends during a night out watching football and drinking in a pub in Bydgoszcz city centre.
Police spokesman Maciej Daszkiewicz told AFP that the 21-year-old's mobile phone was switched off, while media reports from Ireland quoted his family as saying his disappearance was out of character.
"We have firefighters helping with a specialised robot for underwater probes. And there are also scuba divers," said Daszkiewicz.
"Right now we're searching the forest near their hotel, we're conducting underwater probes along the edge of the old market and its surroundings."