19 people have been arrested so far after trouble erupted at last night's football clash between arch rivals Bristol City and Bristol Rovers.
Police and stewards were also injured in the violence after the final whistle.
It flared when the game finished and some City fans spilled onto the pitch at Ashton Gate and ran towards the Rovers end. And there was trouble outside the ground too. Richard Payne reports
Richard Payne's report contains mobile phone footage courtesy of the Bristol Post
Bristol Rovers manager tells ITV News he feels ashamed of troublemaking fans at last night's Bristol derby. He added that continuing violence could lead to matches behind 'closed doors', with no spectators.
Bristol City manager Sean O'Driscoll said that although the match against Bristol Rovers was "tremendous", violence which broke out after the football derby was "disgraceful".
Mr O'Driscoll added: "That's what people will now be talking about...players were disappointed as well. The game was played in good spirit, competitive but not overzealous. We wanted the supporters to act in the same manner but unfortunately they didn't".
Twelve people have been arrested and police officers injured after Bristol City and Bristol Rovers met at Ashton Gate last night. At the end of the game police say fans got on to the pitch and officers worked with stewards to bring them under control.
Known hooligans attached to both clubs were identified and arrested. Three police officers who were injured have received medical treatment. Their injuries aren't thought to be serious.
Bristol City have beaten local rivals Bristol Rovers 2-1 in the Johnstone's Paint Trophy at Ashton Gate this evening.
Jay Emmanuel-Thomas put the hosts ahead in the 12th minute with a long-range strike.
Rovers equalised just before the hour mark when Mark McChrystal headed in a free-kick.
But Bristol-born Joe Bryan struck an impressive winner to send City through to the second round.