North Yorkshire Police said there had been a rise in anti-social behaviour in Selby on Friday evening (April 11).
A force spokesperson said: “Reports include youths climbing on bridges, and egg-throwing at vehicles and members of the public.
“We urge all parents to be aware of their children’s whereabouts and who they are with.
“To address this situation, a dispersal authority has been put in place under the Anti-social Behaviour, Crime & Policing Act 2014.
“This measure will remain effective until 12pm on Saturday April 12, in Selby town centre.”
