Greek football match abandoned after crowd violence
19 March 2012 Last updated at 02:24 GMT
A game between Greek local football rivals Olympiakos and Panathinaikos had to be abandoned after it was interrupted by crowd violence.
Fans set fire to sections of the stands and several petrol bombs exploded close to the pitch.
More than 50 people have been arrested and several police officers were injured.
Matt Gooderick reports.