Police have made four further arrests in connection with trouble at last week's Manchester derby.
CCTV footage helps police with incidents in Manchester derby
Police have made four further arrests after releasing CCTV pictures of a number of fans wanted in connection with trouble at last week's Manchester derby.
Trouble flared at the Carling Cup semi-final first leg between Manchester City and Manchester United at Eastlands last Tuesday.
City won the game 2-1 and the second leg takes place at Old Trafford on Wednesday.
Officers released CCTV footage of a number of men they believed were involved in disorder on Tuesday and it appears to have paid off.
A Greater Manchester Police spokesman confirmed that four arrests had been made in Manchester.
He added that a further four were made on Wednesday - two in Oldham, one in Preston and one in Bradford.
Eighteen arrests were made last week after the match and appeals have been made for calm ahead of Wednesday's game.
