At least 50 people, including Gopalganj-1 MP Salimuzzaman Molla, were injured in a chain collision involving 15-20 vehicles on the Dhaka-Barishal highway in Muksudpur upazila of Gopalganj on Friday morning.
The accident took place at Baraitala while the MP was heading to a protest meeting.
According to witnesses, a Dolphin Paribahan bus rammed into the rear of a paddy-laden truck, causing it to lose control and hit vehicles ahead, triggering the pile-up.
The MP's car was badly damaged, along with several other vehicles, including buses, battery-run three-wheelers and motorcycles.
The collision left at least 50 people injured, including the MP. Many of the injured were taken to Muksudpur Upazila Health Complex and nearby clinics for treatment.
Officer-in-Charge of Muksudpur Police Station Abdullah Al Mamun said 20-25 critically injured people were sent to Faridpur Medical College Hospital and Bhanga Hospital.
Traffic on the highway remained suspended for nearly one hour before Bhanga Highway Police cleared the damaged vehicles and restored movement, he said.