Millwall say they are "devastated" by the disgraceful scenes at Wembley on Saturday during their FA Cup semifinal defeat to Wigan Athletic.
The Metropolitan Police have confirmed 14 fans were arrested, 12 from Millwall, following the ugly scenes that erupted at Wembley, with numerous fights starting in the end reserved for Millwall supporters.
"As a club we are devastated by the scenes we saw yesterday, which are in danger of undoing much of the good work we have done to try and change the perception of the club," said a Millwall spokesman.
"We are trying to find the answers to what happened."