Two people have been found dead following an altercation at a home in Canterbury.
Police rushed to the house in Dickens Avenue at about 7.40pm and discovered the pair had suffered fatal injuries.
Two other people were also injured in what is thought to have been a suspected stabbing and have been taken to hospital.
A man was arrested at the scene and is currently in police custody.
The scene remains taped off by police while officers from the Kent and Essex Serious Crime Directorate work to establish the circumstances of the incident.
It is believed the man arrested and the victims are known to each other.
Witnesses at the scene earlier reported seeing one man wearing grey tracksuit bottoms "covered in blood" with a bandage around his arm.
A second man is thought to have been taken away in an ambulance.
Eyewitnesses say paramedics spent 10 minutes working on a patient lying on a stretcher before taking them to hospital.
Neighbour, Zoe Jones, 44, said: This sort of thing doesn't usually happen around here.
"Sometimes you get the odd tiff and the police come to sort it out but I've never seen anything like this.
"I'm just concerned for the people involved."
Eyewitnesses say between 15 and 20 emergency vehicles were parked up in the road.
Plain clothes officers, thought to be CID, have also been called in.
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