CCTV footage is being studied by police in Belfast as they try to pinpoint and catch the football hooligans that marred the recent World Cup Qualifier between Northern Ireland and Poland.
Northern Ireland won the game 3-2 at Windsor Park but trouble erupted between the two sets of fans both before and after the match. 9 people were arrested, however 5 have since been released without charge.
There was some damage to local shops, homes and bars as riot police tried to subdue the hooligans. 11 police offices were hurt during the clashes.
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