Tuesday 7 March 2017 17:15, UK
The Football Association will "seek observations" from West Ham after a fan entered the field of play during the clash with Chelsea, Sky sources understand.
Ian Crouch, 51, attempted to confront Chelsea's Eden Hazard after the Belgium international gave Chelsea the lead at the London Stadium.
Crouch invader was held back by stadium security guards and marched out of the stadium before being one of three arrests made on the night.
He has been bailed to appear at Thames Magistrates Court on March 21.
Two further supporters were also arrested - a 51-year-old who accepted a caution for common assault and Jamie Oliva, 18, who was charged with attempting to enter the stadium whilst in possession of a flare.
Oliva has also been bailed to appear at Thames Magistrates Court later this month.
The Metropolitan Police had put a "robust" security plan in place for the match in the wake of ugly scenes at the EFL Cup fourth-round tie between the two sides in October.
There was trouble inside and outside the ground before that game, with coins and other missiles being thrown as tensions boiled over as the final whistle approached.
But both sets of fans were thanked for their "fantastic support" on Monday night by the Met Police on Twitter, where they further reported there had been no other major security issues.
