At least three Jain pilgrims were killed and four injured by a speeding truck in Gaya district of Bihar on Thursday, police said.

A speeding truck hit a group of Jain pilgrims, who were walking on the side of the Grand Trunk road on the way to Gaya from Jharkhand, near Bhadiya village under the jurisdiction of Barachatti police station, a district police official said.

"Two Jain pilgrims died on the spot and one succumbed to injuries at the hospital," police said.

The injured pilgrims have been admitted in a hospital in Gaya, about 100 km from Patna.

The driver of the truck fled after the incident.

Police have lodged a case.