In Sylhet, a bus plunged into a roadside ditch in Babubazar area of Jakiganj upazila in the afternoon, killing three people, including the mother and her child, and wounding 25 others.
The deceased were identified as Nasima Akhter, 22, wife of Sahabuddin of Islampur village, their daughter Ruhela Begum, 2, and Nurjahan Begum, 50, wife of Abdul Kuddus of Manikpur village in the upazila.
Locals said the Jakiganj-bound bus fell into the ditch around 4:30 pm when its diver lost control over the steering, injuring 28 people.
Three of the injured were declared dead when they were taken to hospital, said officer-in-charge of Jakiganj Police Station Mir Mohammad Naser.
In Chattogram, motorcyclist Md Harun, 42, son of Abu Taher, was killed as his bike overturned in Amjurhat area of Patiya upazila at night.
The accidents took place around 8 pm when Harun was returning home from Chattogram city amid rain, said witnesses.
He was pronounced dead after being taken to a hospital.