Arsenal and Tottenham Hotspur have released a joint statement urging fans to support their teams 'positively' ahead of Sunday's derby.
The two teams meet at the Emirates Stadium with Spurs 10 points ahead of their local rivals in the Premier League table.
"Ahead of Sunday's game, both clubs are actively encouraging all fans to focus on getting behind their team and enjoying what promises to be a great match," read the joint statement.
"A North London derby is always a special occasion and we hope this game will be remembered for both the action on the pitch as well as the positive support for both teams off it. All fans should be aware that breaches of ground regulations – including anti-social behaviour - will not be tolerated."
Spurs won the reverse fixture 2-1 earlier this season at White Hart Lane.