Vikarabad, Three members of a family were killed on the spot and another critically injured when the car in which they were travelling collided with another car at Manneguda village of Punduru Mandal in this district on Monday.
The critically injured person was shifted to a nearby hospital for treatment, police said.
The deceased were identified as Mallikarjun Reddy, Rajyalakshmi and Devansh Reddy.
A case has been registered and an investigation is underway, police added.