A 28-year-old woman has been arrested following a suspected double-murder in east London.
Police were called to a house in Tavistock Gardens, Ilford, just after 4.20am on Sunday, January 10.
Medics and ambulance staff attended as well as police following reports of a "disturbance" at the house.
The men were found seriously injured at the property on Sunday morning and later died at the scene, the Metropolitan Police said.
A woman with non-life-threatening injuries was arrested at the scene and taken to hospital for treatment.
Officers used a Taser on the woman during her arrest, according to the force.
Homicide detectives are now investigating the deaths.
Homicide detectives in the Met's Specialist Crime Command have been informed and a crime scene is in place.
Enquiries are still ongoing.
Several forensics officers were seen outside the house, and police have drawn a wide cordon around the area.
One man who lives closeby described being awoken by the sounds of a woman screaming.
Kuddus Miah, 44, said: "She was screaming 'help, help call the police'.
"The police and ambulances were there very quick. I got changed out of my PJs and went outside and asked one of the neighbours opposite what happened.
"She said a woman was coming in and out of the house crying out for help and apparently had a knife in her hand.
"I saw the police arresting her, taking her into the van, she was maybe around 5ft 5ins, blonde hair, maybe late 20s. Apparently, they were new tenants.
"We've lived here around 15 years and it's a very quiet neighbourhood, it's shocking."
Two other people described waking up to a woman's screams early on Sunday morning.
One man, who gave his name only as Singh said: "She was quite hysterical, calling for the police, screaming.
"She was at the doorstep then went back inside and then out again, screaming and screaming for help."
In a statement, the Met Police said: "Police were called to a residential address in Tavistock Gardens, Ilford, at 4.24am on Sunday, January 10, to reports of a disturbance.
"Officers attended along with paramedics from London Ambulance Service. Two men were found seriously injured.
"Despite the efforts of emergency services, they both died at the scene. Next of kin haven't been informed at this time.
"A 28-year-old woman was also found with non-life-threatening injuries. She was arrested at the scene. A Taser was deployed during the arrest.
"She has been taken to hospital to be treated for her injuries."