Residents say four police cars and CCTV vans were at Fernley Park last night because of anti-social behaviour by a group of teenagers.
Townspeople are concerned that numbers causing trouble in Uckfield appear to be growing.
Sussex Police said they were called following reports of a group of around a dozen children in their early teens causing trouble.
Shortly after 4pm the youngsters, of both sexes, were seen throwing snowballs at a property in Old Common Way, kicking a gate, banging on windows, shouting foul-mouthed abuse and hurling a sledge into a nearby pond.
The group was also seen in nearby Baxendale Way, again using foul language.
Dispersal orders were served on two girls, aged 15 and 14, and a 13-year-old boy, and their parents informed.
The orders temporarily exclude recipients from specified areas and enable police to arrest anyone who disregards them.
Police continue to encourage anyone witnessing anti-social behaviour to report it immediately by dialling 999. They are also asked to pass on any information that will enable officers to identify and deal with those responsible by contacting police online or by phoning 101, quoting Operation Asteroid.
Earlier this week Mayor Cllr Louise Eastwood urged people not to take vigilante action against youths who have been running riot.
She said police were aware of them and working on a plan of action.
Sussex Police say they are intent on tackling those responsible and employing various methods to identify ringleaders and to support the wider community in bringing a halt to tearaway activity. See: Police respond to complaints about anti-social behaviour in Uckfield.
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