Two men have been found dead at a house in Hartlepool in County Durham, police said.
The bodies were discovered shortly before midnight on Friday. A woman in her 30s has been arrested on suspicion of murder and released on police bail while inquiries continue.
Police said the families of the two men had been informed and were being supported by specially trained officers.
“Police were called to a property on Eaglesfield Road in Hartlepool about 11.40pm on Friday 15 March, where sadly the bodies of two males were located,” Cleveland police said in a statement.
“Officers are investigating the circumstances surrounding their deaths.”
A property on the road has been cordoned off and police patrols have been stepped up in the area.
“A woman aged in her 30s has been arrested on suspicion of murder and has now been bailed while inquiries continue. Police are carrying out high visibility reassurance patrols and these will continue over the coming days,” a police spokesperson said, adding that anyone with information that could shed light on the incident should come forward.
A North East ambulance service (NEAS) spokesperson said: “We received a call at 11.36pm to a serious incident at a private property on Eaglesfield Road in Hartlepool. Police also attended the scene.
“We sent a duty officer, a clinical team leader and an emergency ambulance crew. All NEAS resources stood down on scene.”
Anyone with information is asked to contact Cleveland police on 101.
