A group of Galatasaray fans were caught trying to dig their way into Schalke's Veltins-Arena on Monday night in a bid to see their team training in preparation for Tuesday's Champions League encounter in Gelsenkirchen, Germany.
Stewards discovered them trying to create a passage under a perimeter fence using only their bare hands, but with the ground frozen, they did not get very far.
"It's true, after their final training session, our Turkish friends were caught trying to dig a way into the stadium through the frozen ground," Schalke's director of sport, Horst Heldt, told Sky television.
"The stewards prevented them from doing so."
The game was a major event in Gelsenkirchen, which has a large resident Turkish population, with many Galatasaray shirts intermingled among the host Royal Blue spectators.
About 20,000 people with Turkish origin live in the city, which has a total population of 260,000.
Despite the lack of separation between the fans, no major disturbances were reported inside or around the stadium, with the local police reporting 17 arrests in total. Galatasaray won Tuesday's match 3-2 and advanced to the Champions League quarterfinals 4-3 on aggregate.
