Four died and 19 others have been injured in a transformer-bus collision that occurred on Chilaw-Puttalam main road.
According to the police, a private bus from Vavuniya had veered off the road and collided with a transformer.
The accident had taken place when the bus driver had attempted to overtake other vehicles.
The injured persons had been admitted to the Chilaw and Marawila hospitals for immediate treatment.
The reason for the accident has not been identified yet.
Marawila police are investigating.