At least nine people died and around 50 others were injured, some critically, when a truck rammed into a vehicle carrying pilgrims in Uttar Pradesh’s Bulandshahr district early Monday morning, Xinhua reported.

The accident occurred at approximately 2:15 a.m. (local time) as the group was traveling to a temple in neighboring Rajasthan. Police said two of the injured are in critical condition.

Authorities are investigating the cause of the collision and providing assistance to the victims and their families, according to Xinhua.