The main gas supply line to Narsingdi was damaged during construction work on a drain, according to Titas Gas authorities
The accident occurred in the upazila’s Lahiri Hat area around 11:30am, said Kotwali Police OC ABM Sajedul Islam.
The two vehicles collided head-on, killing three on the spot, he said. They have yet to be identified.
Police rescued the injured and sent them to Rangpur Medical College Hospital.