Several policemen were injured and vehicles set ablaze after an ongoing protest against a coal mining project turned violent in the Tamnar area of Chhattisgarh’s Raigarh district, officials said.

The mob also stormed into the coal handling plant of Jindal Power Limited, and torched a conveyor belt, two tractors and other vehicles, besides vandalising the office premises on Saturday, the officials informed. Tension prevailed after protestors indulged in stone-pelting and set ablaze a police bus, a jeep and an ambulance, besides damaging several other government vehicles, they said.