COLOMBO, April 17 (Xinhua) -- Ten people, including three children, were killed when a passenger van collided with a bus in Mahiyanganaya, in Uva Sri Lanka on Wednesday, police said.

Police said the van had veered off the road and crashed head on into the bus which was heading towards Trincomalee, in the east from Diyatalawa, in the central highlands.

According to the police, two injured are in critical condition.

The driver of the bus had been arrested. Initial investigations revealed that the driver of the bus had fallen asleep.

Police are conducting further investigations.