POLICE are investigating after a knife amnesty bin was ransacked - and all the knives stolen.

Avon and Somerset Constabulary installed the 'knife surrender bin' following a 52 per cent spike in knife crime across the force area in the past year.

But a day later the bin in Weston-super-Mare was broken into and the knives were taken.

PC Jon Biggins said: "On the evening of March 13, the knife surrender bin in Weston was broken into by a number of people.

"The contents were recovered a short distance away, and the whole incident was caught on CCTV.

"We are in the process of identifying those responsible in order to bring about a prosecution."