Five members of a family, including two children, were killed in an accident on Friday after a speeding SUV hit their car in north-west Delhi.

The incident took place in Trinagar area, a senior police official said.

All the five occupants of the car were killed in the accident, the official said, adding they suspect that the person behind the wheel of the SUV was under the influence of alcohol.

The two girls who were killed in the accident died on the spot while other members of the family died in the hospital, they said.

"We have not arrested anyone but we have identified the culprits," the official said.