Drug users in High Wycombe have reported bad side effects when injecting heroin - and they have been urged to contact the emergency services if they have an adverse reaction.

According to One Recovery Bucks, the adult substance misuse service, those who inject heroin have suffered a string of bad side effects including headaches, feeling unwell and cold or shaking.

It has not been confirmed if these side effects are from a 'bad' batch of drugs, but a spokesman for One Recovery Bucks said they were putting out a "harm reduction message" after receiving some reports from users of the service.

Putting out a warning on Twitter, the organisation warned: "Please be careful and contact emergency services if you experience an adverse reaction."