Three people were injured as a truck carrying 136 sacks of onions hit the viaduct at Padma Bridge on Monday afternoon.
Bazlur Rahman, traffic inspector (TI) of Munshiganj, said that the truck was going to Shyambazar from Shariatpur.
The truck overturned, leaving three people injured.
The wounded were sent to Sreenagar Upazila Health Complex, he added.
Meanwhile, a patrol team of security forces seized another truck as it hit their vehicle while they were rescuing the injured on the spot.