A teenage boy was arrested for running onto the field at Anfield during the Liverpool vs Manchester United game.
The two historic rivals played out a remarkable contest on Sunday, with the Reds beating United 7-0 at home.
However, one of the goals was marred by an incident that saw a young fan run onto the field and almost injure Andy Robertson.
A 16-year-old boy has been arrested following the Liverpool vs Manchester United game at Anfield yesterday (Sunday 5 March)," a Merseyside Police statement read.
During the match a supporter was seen on the pitch. Officers later arrested a 16-year-old boy from Winsford on suspicion of encroaching onto a football pitch.
He is scheduled to voluntarily attend a police station in Merseyside regarding this incident. Our officers are currently working with Liverpool Football Club in relation to the incident."
In a separate statement Liverpool said: There is no excuse for this unacceptable and dangerous behavior. The safety and security of players, colleagues and supporters is paramount."