At least four persons were killed and 20 were injured on Saturday after a truck and a bus collided on National Highway 57.
The bus was travelling from Darbhanga to Supaul.
National Highway 57 links Muzaffarpur to Purnea in Bihar. It passes through Muzaffarpur, Darbhanga, Muria, Supaul, Narahia, Narpatganj, Forbesganj, Araria, Jhanjharpur and Purnia.
Further details are awaited.
