Neighbours said they heard screams coming from the house where four people were killed.

A man has been arrested on suspicion of murder after three women and a man were found stabbed to death at a house in South Bermondsey.

Scotland Yard has said that all the people involved in this horrific incident were known to each other, while a neighbour said they were all part of the same family.

The neighbour, 55, told LondonWorld that they had heard screams coming from the house in the middle of the night.

The scene in Delaford Road, South Bermondsey, where four people were killed in the early hours of the morning. Credit: Lynn Rusk

They said: “Roughly around 1.30am I heard some screaming.

“It sounded like someone was getting battered, having a fight or getting beaten.

“I opened the window and didn’t see anything.

"I was dozing off again and then I heard the helicopters.

"When I opened the windows again I saw loads of police cars, four ambulances, helicopters hovering around.

"There were a lot of armed police here.

"It’s unsettling, unnerving - a very barbaric act."

Officers at the police cordon in Delaford Road, South Bermondsey, where four people were killed in the early hours of this morning. Credit: Lynn Rusk

Officers were called at about 1.40am today, Monday April 25, to reports of a disturbance at a house in Delaford Road, Southwark.

Police attended and broke down the door, finding four people suffering stab wounds.

Despite the efforts of paramedics, the victims were pronounced dead at the scene.

The man was arrested on suspicion of murder and is in custody at a south London police station.

It is thought that all five people were known to each other.

The crime scene in Delaford Road, South Bermondsey, where four people have died. Credit: Lynn Rusk

Officers are in the process of contacting next of kin, and Scotland Yard said post-mortem examinations will be arranged in due course.

Detectives from the Met’s Specialist Crime Command - which cover the most serious incidents - are investigating.

Enquiries continue to establish the circumstances, a police spokesman said.

Harriet Harman, the area’s MP, described the incident as “tragic”.

She said: “All my sympathies with the family and friends of the three women and one man murdered today.

“Thoughts are with shocked residents of this peaceful neighbourhood.

“Thanks to the Met Police for their work.

“Please give them any info that you have - it can be anonymous.”

While Mayor of London Sadiq Khan he was “heartbroken” and that his thoughts and prayers were with the family and friends of the four people who died.

“Heartbroken to hear that three women and a man were killed last night in a devastating incident at an address in Southwark,” he said.

“My thoughts are with the family and friends of those who have lost loved ones in this awful crime.

“An investigation is underway and a man has been arrested.”

Man arrested on suspicion of murder after four people stabbed to death in South Bermondsey home