Man held on suspicion of murder after four people stabbed to death in London

Grandmother believed to be one of victims as three women and a man pronounced dead after police called to home in Southwark

A grandmother was among four people stabbed to death in a house in south London, a family member has said, after a man was arrested on suspicion of their murder.

The Metropolitan police are investigating the deaths after police were called to a residential address on Delaford Road in Bermondsey at about 1.40am on Monday after reports of a disturbance.