Police issue River Witham behaviour warning
Young people acting irresponsibly along a stretch of the River Witham in Lincolnshire have been given a police warning.
It follows complaints from boat owners about incidents of anti-social behaviour in the Boston area.
Officers said there were increasing concerns for the safety of teenagers who may also be entering the water after consuming alcohol.
Police foot patrols will be increased in the area to help tackle the problem.
Insp Phil Clark said: "The behaviour of this predominantly adolescent group interferes with the legitimate use of the waterways by boat owners and they should be aware that their actions may result in prosecution".