THREE bongs and a Swiss army knife were among items seized from four teenagers at an outdoor classroom at Hengistbury Head.

Officers from the Boscombe Police Neighbourhood Policing Team also took cannabis and a set of scales from the youths, aged 16 and 17.

They came across the group on Thursday May 13 during routine patrols and carried out searches.

Police disperse group of 40 youths at Poole beach

Their parents were then informed.

A spokesman for Bournemouth Police said the patrols were undertaken following reports of anti-social behaviour in the area.

"All four youths were given very strong words of advice, parents have been informed and the appropriate action will be taken" added the spokesman.