Celtic fans are at the centre of a UEFA investigation after police raised concerns over 'offensive' songs against Rennes.
Chants from supporters during Rennes clash come under scrutiny
Celtic fans are at the centre of a UEFA investigation after police raised concerns over 'offensive' songs during a Europa League game against Rennes.
Celtic have been asked by European football's governing body to give their side of events during the 3-1 victory over the French club at Parkhead on November 3.
It is understood that Strathclyde Police made the UEFA delegate aware of "offensive" singing during the encounter.
A spokesman for the force said: "We can confirm there were a number of instances during the game of singing offensive songs and inquiries are ongoing to detect the offenders."
Celtic confirmed they had been asked by UEFA to provide a response to the allegations, as a club spokesman said: "We are currently looking into these claims."
UEFA's media department were not available for comment on Saturday but reports say the case will be heard on December 8.
Celtic last month urged fans to stop singing pro-IRA chants after being "inundated" with complaints from their own supporters following their 2-0 defeat by Hearts at Tynecastle.
Lothian and Borders Police announced they had launched an investigation into the "singing of sectarian songs" following the Scottish Premier League game on October 2.
Embarrassment
Celtic chief executive Peter Lawwell said: "Chants glorifying the Provisional IRA are totally unacceptable.
"One, it is wrong, and it is an embarrassment to the club and embarrassment to the majority of supporters.
"We have dealt with it at Celtic Park and we will do all we can to make sure it doesn't happen home or away.
"We don't want it, we don't need it. We have the best supporters in the world and hold that reputation dear."
Celtic's Old Firm rivals Rangers were hit with UEFA sanctions in April after being found guilty of two counts of "discriminatory behaviour" on the part of their fans following Europa League games against PSV Eindhoven.
Rangers fans were banned from travelling to their next away game in Europe, a Champions League qualifier in Malmo, and the club were fined more than £70,000.
Rangers were also handed a suspended ban on a second away game and warned they faced playing a home game behind closed doors if found guilty of the same offence within three years.
The Ibrox club had received fines following similar incidents in previous matches against Villarreal and Osasuna.
