Police are pursuing a drugs inquiry following the sudden death of a young woman in Preston.
Paramedics were called to a home on Heywood Avenue, Ashton, at around 5.25am on Saturday to reports a woman had been found unresponsive.
The 24-year-old, named locally as Sinead Lowry, was taken to Royal Preston Hospital where she was pronounced dead on arrival.
A murder investigation was initially launched and a 26-year-old man, from Preston, was arrested at the flat on suspicion of murder.
But this was dropped and he was released without charge on Sunday morning after hours of questioning.
However, the man has been bailed pending further enquiries in relation to allegedly being concerned in the supply of a Class A drug, cocaine.
We are trying to establish exactly what has happened to this woman. Her family are being supported by specially trained officers at this time.Det Insp Richard McCutcheon
He has been bailed until June 30.
Det Insp Richard McCutcheon, from the Force Major Investigation Team (FMIT) said: “We are trying to establish exactly what has happened to this woman. Her family are being supported by specially trained officers at this time.”
Neighbours told of hearing a party at the flat on Friday but said there was nothing “untoward” and spoke of their shock to wake to see a heavy police presence on the quiet street on Saturday morning.
Resident Debbie Hindle, 50, said the male occupant and a group of friends were socialising at the home on Friday night. She added: “There was no commotion.
“There were a few people there but all having a laugh and a joke. There was no fighting or wild party.
“The next thing I knew there were police out. I’m shocked.”
Sylvia Welninska, 26, added: “There were a few people there last night but it was quite quiet. I didn’t hear any shouting. Then this morning we saw the ambulance and police cars. It’s upsetting.”
A post mortem examination of the young woman has proved inconclusive, but the death is no longer deemed suspicious.
Further toxicology tests will now be undertaken and a file will be handed to the coroner’s court.
Tributes were posted on social networking site Facebook over the weekend, from friends in shock at the young woman’s sudden death.
Zoe Tuson said: “Another angel gained but far too soon.”
And Phoebe Browne said: “Never felt so much shock and pain like this, you [were] too young.”
Adele Parry added: “RIP to a beautiful young woman.”
Anyone with information is asked to contact police on 101.
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