Two trucks were racing against each other when one of the trucks lost control and hit a 10-year-old-boy who was walking on the roadside at Phultola under Habra police station area, the sources said.
A mob then gathered on the spot and set both the trucks on fire and caught hold of one of the helpers of the truck as both the drivers had fled and started beating him up, they said.
When a police team went to the spot the mob turned their ire on the police team and beat some of them, sources said.
The injured helper has been admitted to Habra hospital, sources said adding police reinforcements have been rushed to the area.
