The FA is investigating the pitch invasion by Aston Villa fans during their side’s home
over West Brom.
Some Villa supporters held up the tie by running on to the pitch in injury time and at full time, while seats were thrown from the West Brom end.
The FA will investigate in conjunction with both clubs and the police.
A police statement said they will “be supporting the FA to identify people involved in pitch invasions”.
Baggies boss Tony Pulis called the scenes
while Villa apologised to West Brom.
“The club does not condone supporters invading the field of play under any circumstances,”
“We are very disappointed that what should have been a very memorable and proud moment for our fans was marred by the actions of those who could not control themselves.
“They have let both themselves and their club down.
“The club extends its sincere apologies to the Football Association, the West Bromwich Albion directors, manager Tony Pulis and all his staff and players.”
The FA has not set a timeframe to conclude the investigation.
Possible sanctions against Villa include a heavy fine for failing to control their supporters.
said they are also investigating a pre-match disturbance at a pub near the ground after 17 men were arrested on suspicion of various public order offences, including assaulting a police officer.