CLASS A drugs users have been warned to be especially vigilant following the deaths of three people in Sheffield over the past week.
Although there is no clear connection between the deaths of the three people, who were all thought to have been drug users, South Yorkshire Police said they are concerned there may be a link.
A 36-year-old woman from Gleadless and a 47-year-old man from Sharrow were both found dead at their homes on Thursday night.
Later the same night, emergency services were called to assist a 43-year-old man from Hillsborough who had apparently overdosed but was treated.
Last Sunday a 54-year-old man died at his home in Sheffield city centre.
It is believed that all four were drug users.
Supt Colin McFarlane said: “It is entirely possible that these deaths are a tragic coincidence.
“However, we cannot rule out the possibility that these deaths may be linked to the same batch of heroin or to users mixing different drugs.
“I would urge drug users to be especially vigilant and, if they experience any unusual symptoms after taking drugs, to go immediately to hospital for treatment.
“I would also ask anyone with any information to contact South Yorkshire Police on 101 as a matter of urgency.”
Last month West Yorkshire Police issued a warning about a potentially strong or contaminated batch of heroin following the sudden death of a 26-year-old man in Morley, Leeds.
It was not known whether the strength of the heroin was a factor, or whether it had been cut with something unusual.
At the time, drug users were advised to seek medical treatment if they had an unusual reaction to something they had taken.
Confidential advice for drug users is available from national support service Frank on 0300 123 6600 or online at www.talktofrank.com.