POLICE praised fans for their excellent behaviour at the Manchester Derby last night - but shocking footage may tell another tale.

Video footage and photos have emerged claiming to show Manchester City fans smashing up a toilet block in Old Trafford after Manchester United's win on Wednesday October 27.

Supporters can be seen kicking and ripping sinks off the wall, whilst being goaded on by bystanders.  

A Manchester United spokesperson confirmed damage was caused to toilets in the stadium last night but said they will be repaired in time for the Burnley match on Saturday.

The club added that 'that will be the end of the matter'.