A man has been arrested on suspicion of murder after a woman died at a Preston home.
Paramedics were called to an address on Heywood Road, Ashton, in the early hours of Saturday morning, at around 5.25am.
They were called to reports of a 24-year-old woman found unresponsive.
She was taken to Royal Preston Hospital but was pronounced dead on arrival.
A 26-year-old man from Preston has now been arrested on suspicion of murder and is in police custody.
Police are appealing for anyone with any information that could help them to come forward.
Det Insp Richard McCutcheon from the Force Major Investigation Team (FMIT) said: “This investigation is very much in its early stages and we are trying to establish exactly what has happened to this woman.
“Her family are being supported by specially trained officers at this time.
“I am asking anyone who may have been in the area the night before, the early hours of this morning or indeed if they have any information about this incident at all, to get in touch with us at their earliest opportunity.”
A post mortem examination to establish the cause of death is due to take place.
Those with information can contact Lancashire Police on 101 quoting incident reference 286 of May 16.
Alternatively Crimestoppers can be called anonymously on 0800 555 111 or online at Crimestoppers-uk.org.