Hull are seeking financial compensation from the London club after more than 50 seats were ripped out and used as missiles at the KC Stadium, and toilets were destroyed. Twelve people were arrested by police.

An FA spokesman said: "These are the sorts of things we never want to see in a football stadium.

"We are working with the clubs and the police to investigate what happened.

"The priority is to identify the individuals who were responsible and we would like to see anyone found guilty of football-related violence given the strongest possible sanctions, including banning orders from attending matches in this country."

Hull claimed in a statement that a significant number of Millwall fans had "arrived with the single intention of causing maximum disruption".

Millwall pledged to "rid this club of the element that caused problems" in a statement of their own.

Humberside Police are conducting an investigation into the events and are confident of catching the perpetrators.

Chief inspector Darren Downs told BBC Radio Five Live: "We have got CCTV evidence inside, we have got evidence gathering teams inside, there are photographs from press photographers.

"To be honest we know an awful lot of them already. We know the names, we know the faces because they have been involved in smaller level stuff and they have been trouble-causers for a while.

"I feel confident that virtually everyone involved in the disorder on Saturday will, at some point in the next few months, be brought to justice."