West Ham United have been threatened by MP Mark Field that they will be forced to play behind closed doors if they fail to control their supporters in future.
The Hammers have faced crowd troubles on multiple occasions this season following their move to the London Stadium during summer.
However, the problem came to the fore in midweek as violent clashes took place between fans of West Ham and Chelsea following the EFL Cup tie between the London rivals.
The FA have launched an investigation into the clashes while Metropolitan Police have arrested several people with more arrests to follow.
London and Westminster MP Mark Field, the vice-chairman of the all-party parliamentary football group, told the Daily Express: “If there is a repeat of the violence, the next two or three home games for West Ham should be played behind closed doors.
“Within the next 14 days, West Ham United should present a detailed plan to the FA and Premier League outlining what they are going to do about security.
“None of these problems were unforeseeable. There have been some clear failings and they need to move with urgency.
“They have got to a grip on this. It is no good passing the buck to the police. It might mean cordoning off areas of the ground.
“A points deduction would be the wrong move, but the ultimate sanction would be to close the ground to spectators. That would obviously have financial implications for the club.
“West Ham got a good deal with this stadium, and they should be making a significant contribution. They need to ensure these dreadful events are not repeated, and if that requires expenditure, I would expect them to meet a large part of the bill.”