Three labourers were killed and six others injured when a chemical tanker collided with a tractor-trolley in Dahod district of Gujarat on Friday night, the police said.
The accident took place near Muvalia crossroads on Ahmedabad-Indore Highway, said a police official.
The tanker, coming from Godhra, collided with the tractor-trolley in which around 15 labourers were travelling.
The tanker turned turtle due to the collision.
The injured were taken to a government hospital in Dahod.