Celtic have urged fans in Amsterdam for the Champions League match with Ajax to be “extra vigilant” after a group of supporters were attacked in a city centre bar.
It was reported around 50 supporters were in the Old Sailor Cafe in the city when they were attacked by a group of masked men on Tuesday night.
There were no serious injuries and a number of people were arrested. The attack follows trouble last month when a group of Ajax fans ripped up and threw seats at police and home fans as the teams played in Glasgow.
They were reported to governing body Uefa and a disciplinary case is to be heard on November 21.
The night before the match at Celtic Park, British Transport Police arrested two Dutch fans over alleged disorder in Glasgow Central train station.
Around 12,000 Celtic fans are expected in Holland for tonight’s match and the club said fans should not travel to the stadium unless they have a ticket for the Celtic section.
A club statement said: “Celtic Football Club is urging all supporters in Amsterdam for tonight’s Uefa Champions League tie with Ajax to be extra vigilant following an unprovoked attack on Celtic fans last night.
“The attack in the city centre by an element of the Ajax support resulted in a number of arrests.
“Celtic are urging all supporters to be extra vigilant in the city centre and at the Amsterdam ArenA, and to only stick to the advised areas for safety reasons.”
Speaking at a pre-match media conference yesterday, Ajax coach Frank De Boer said he hoped a group of “crazy” fans would not disrupt the game.
He said: “I am confident in that but you never know. There is always some crazy people (who) try to disturb something but hopefully it will not happen.”