Four men have been arrested after a flare was thrown onto the pitch during Kidderminster Harriers fourth-round FA Cup tie against West Ham on Saturday.
The men, in their 20s and 30s, from Birmingham, Kidderminster and Hampshire, were held on suspicion of possessing and setting off a flare during the game.
National League North side Kidderminster played brilliantly against David Moyes's Premier League side and almost caused a shock, leading for 72 minutes before ultimately suffering a 2-1 defeat.
West Mercia Police said that the majority of fans were well behaved but revealed they were alerted to the incident by club stewards and once identified 'the men were then removed from Aggborough Stadium'.