The incident occured near Godapur Chowk on National Highway 31 in the district during the wee hours.
Nawada Sadar Deputy Superintendent of Police (DSP) Sanjay Kumar Pandey said, "A brick-laden truck was going from Nawada to Rajauli while another loaded with stone chips was coming from Rajauli side. They collided at high speed near Godapur Chowk."
The DSP said the driver of one truck died on the spot, while that of another died while being treated at the hospital. One helper of the truck is in critical condition.
Both vehicles have been seized and the dead bodies have been dispatched for postmortem.