Fans of Polish side Legia Warsaw were barred entry to their match at Aston Villa on Thursday following clashes with police outside the stadium in which authorities said three officers were injured.
The unrest occurred ahead of kickoff in the Europa Conference League game at Villa Park, and the police denied entry to travelling fans, leaving the away stand empty.
“We’re currently unable to allow away fans into Villa Park following disorder outside the stadium which has seen missiles thrown at officers,” Birmingham Police said in a statement.
“Three officers have already been injured and a significant policing operation continues.”