Manchester United's Premier League game with Liverpool at Old Trafford has been postponed.
The decision comes following protests by fans at the ground and at the team hotels.
The game was due to kick-off at 4.30pm on Sunday afternoon.
It was initially delayed and then a statement from Manchester United on shortly after 5.30pm read:
"Following discussion between the Police, The Premier League, Trafford Council and the clubs, our match against Liverpool has been postponed due to safety and security considerations around the protest today.
"Discussions will now take place with the Premier League on a revised date for the fixture.
"Our fans are passionate about Manchester United, and we completely acknowledge the right to free expression and peaceful protest.
"However, we regret the disruption to the team and actions which put other fans, staff, and the police in danger. We thank the police for their support and will assist them in any subsequent investigations."
Significant protests taking place by 1000s of fans now outside Old Trafford against the Glazers after some got inside onto the pitch. Probably the biggest ever seen.
— Rob Harris (@RobHarris) May 2, 2021
Meanwhile, a statement released from the Premier League following the postponement said:
"Following the security breach at Old Trafford, the Manchester United vs. Liverpool game has been postponed.
"This is a collective decision from the police, both clubs, the Premier League and local authorities.
"The security and safety of everyone at Old Trafford remains of paramount importance. We understand and respect the strength of feeling but condemn all acts of violence, criminal damage and trespass, especially given the associated COVID-19 breaches.
"Fans have many channels by which to make their views known, but the actions of a minority seen today have no justification.
"We sympathise with the police and stewards who had to deal with a dangerous situation that should have no place in football.
"The rearrangement of the fixture will be communicated in due course."