Greater Manchester Police (GMP) confirmed 8 arrests and one indictment related to Manchester United's 4-3 win over Liverpool in the FA Cup quarter-finals on Sunday.
Accordingly, they arrested 2 home team fans on suspicion of shouting about the bombings of Hillsborough and Heysel that happened to Liverpool club in the past. These subjects were aged 21 and 59, with additional GMP.
GMP also said that the clip shows a Man United fan making sick gestures referring to the above disasters. Mail Sport reported on Monday that Man United are working with GMP to determine the culprit.
In addition, some away team fans were also arrested, including George fenning, 39, who was accused of possessing B-class drugs, possessing firecrackers and throwing them onto the pitch. This person was later released on bail.
There have been two incidents where Liverpool fans threw items at Man United fan areas in the stadium, one of which fell into the disabled area.
The video shows a red smoke bomb being thrown from Liverpool fans' stands into the disabled area behind the goal right after Mohamed Salah put The Kop up 2-1.
A lightning was also thrown from the upper floor of the Eastern stand, where there were 9,200 Liverpool fans, to the lower floor. According to Mail Sport, the firecracker fell near a young fan watching the match with his father.
It is not yet clear what accusations are related to the incident.
Two other Man United fans were also arrested, one 19, for serious racial violations of public order and the other 31, for running into the stadium.
3 Liverpool fans - 36, 26 and 31 years old - were arrested on suspicion of possessing type A drugs.
The arrests are the result of our proactive, uncompromising approach to ensure true fans and audiences can enjoy the game safely, said GMPs Chief Inspector Jamie Collins.
GMP can confirm that a 21-year-old man and a 59-year-old man were arrested for their involvement in the tragedy. Such actions will not be tolerated and will be handled strongly.
We held a meeting with the two teams' fans before the match and they both agreed that talking about the tragedies was completely unacceptable. GMP will take control of the issue and arrest those who do so, regardless of which team they are fans of.
I hope that these arrests will serve as a warning to anyone who comes to future matches.
The English Football Association quickly condemned the people involved.
Man United are understood to have worked with both Liverpool and the police. They have previously stressed that such an act is unacceptable and will have consequences.
After talks between the UK's football regulators and the Royal Prosecutor's Office, they agreed that singing sick songs about disasters like Munich and Hillsborough would be considered a criminal offence.
Anyone accused of using dramas to mock opponents could face a ban and potential prosecution, while security forces have been given new guidance to raise their awareness of the issue and have greater authority to deal with the guilty.
Three Man United fans were arrested last month after shouts involving Hillsborough when the two teams met at Liverpool in December.