Police are investigating after four people in Blackpool had an adverse reaction within a short time of one another after taking heroin.
The emergency services were called to several separate incidents on Saturday in central Blackpool.
It is not yet established whether the four incidents are linked but police are warning heroin users in Blackpool to be vigilant.
Det Insp Kirsty Wyatt of Blackpool CID, said: “We are currently investigating the source of the heroin and working closely with partners in Health.
“We would advise anyone to avoid taking illegal drugs.
"However, if anyone has taken heroin and starts to feel unwell, or experience an unusual reaction, please seek medical help immediately."
It is also advisable that users should not inject heroin when alone, so there is assistance should they suffer an adverse reaction.
Decision made on controversial plans for 152 homes in Warton village
Councillors defer vote on mammoth 250-home development on greenfield site
Appeal after man dies in M55 collision
Man sentenced for Blackpool assault which left victim with catastrophic injuries
Three men sentenced for drug offences in Accrington
