Police have issued a warning to drug users in Sheffield following three deaths in the space of a week.
Officers investigating the deaths are concerned that they may be linked to the same batch of heroin circulating in the city.
South Yorkshire Police said ‘although there is no clear connection’ between the deaths detectives are ‘concerned there may be a link’.
The two men and a woman whose deaths are under investigation were all believed to be drug users.
Last night a 36-year-old woman from Gleadless and a 47-year-old man from Sharrow were both found dead at their homes.
Emergency services were also called to a 43-year-old man from Hillsborough who had apparently overdosed, but he was revived and did not need hospital treatment.
The first drug related death in the series was reported in the early hours of Sunday, April 13.
A 54-year-old man died at his home in Sheffield city centre.
Superintendent Colin McFarlane, of South Yorkshire Police, 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.”