Millwall Football Club will do everything possible to assist the Football Association and the Metropolitan Police investigating the disorder that occurred during Saturday's FA Cup Semi-Final against Wigan Athletic at Wembley Stadium.
The Met confirmed after the match that they had made ten arrests with more expected to follow.
Millwall CEO Andy Ambler said: "Our position is clear. Anyone associated with our club found guilty of violent behaviour will be banned indefinitely from Millwall matches in addition to any punishment they receive from the authorities. Having worked so hard to show the positive side of our club both on and off the field, we cannot allow the actions of a mindless minority to undermine that.
At this stage we are still in the process of establishing the full details of what happened in a section of the ground during the second half. When we have those facts at our disposal and the police have completed their investigations we may be in a position to comment further."
The Football Association's official statement reads:
Alex Horne, General Secretary of The FA. said: "The Metropolitan Police and The FA are this evening investigating scenes of sporadic violence and disorder in the Millwall FC end at today's FA Cup Semi-Final.
"The FA and Wembley Stadium will work with Police and representatives of Millwall FC to review all events.
"We will look to ensure those involved are identified and we would call for criminal charges and a football banning order to be brought against them.
"The FA deplore the scenes which have taken place, which are unacceptable. Everything will be done to take action against those involved."