Three fans were arrested last night amidst violent scenes at Manchester United's U21 game against rivals Manchester City.
Police were called to Old Trafford by Manchester United, and arrested an adult and a juvenile for assault while another underage fan was arrested for pitch invasion.
Videos of the incident show punches being thrown by the two sets of fans as the match stewards struggle to retain control. Police have requested CCTV footage from Manchester United as they look into the incident.
More than 16,000 fans were in attendance for Manchester United's 4-0 win against their great rivals, and the incident appeared to start when fans from the opposing sides clashed in the top corner of the Sir Alex Ferguson stand. Stewards appeared to throw some fans out before the police arrived to calm the situation.
On the pitch it was Adnan Januzaj making all the headlines, as the Manchester United winger pulled off a fine assist before getting on the scoresheet himself as Warren Joyce's side moved within one point of the league title with one game remaining - against Manchester City. The fixture is yet to be arranged.
Fellow first team player James Wilson also featured in the game and was on the scoresheet, while youngsters Ashley Fletcher and Matthew Willock rounded off the win.
Januzaj hasn't started a game for Manchester United's first team since February and has started just seven Premier League games this term without finding the back of the net. His lack of game-time has prompted reports that he could be on his way out of Old Trafford, and his first team chances were further reduced by the signing of PSV Eindhoven winger Memphis Depay.
The Dutchman reported cost the Red Devils £22 million and penned a four year contract with the option of a further 12 months for around £130,000-per-week.
The scenes at Old Trafford last night were shocking; Manchester United had allowed fans in for free to see their young stars and it's great that over 16,000 turned up - however it seems not everyone turned up to watch the game.
Evidently those who were caught fighting came to the game for that reason only - this wasn't a highly-charged Premier League showdown. Those arrested and those caught out by police examining CCTV deserve the punishments they receive.