In Panchagarh, the driver and helper of a brick-laden tractor were killed as their vehicle veered into a pond beside Panchagarh-Dhaka highway in Paikpara area of Boda upazila on Saturday.
The deceased were identified as tractor driver Mansur Ali, 42, son of Makbul Hossain of Shukurur Dokan area in Mithapukur and helper Chhatrish Chandra, 38, son of Alsia of Vimpukur village in Boda upzila.
The accident took place in the evening when the tractor veered into the pond in the evening, leaving the duo dead on the spot.
In another accident, two motorcyclists sustained severe injuries as a speeding truck hit their vehicle in Barrister Bazar area in the district town in the evening.
The injured--Abdul Salam, 45, son of Nindu Mahan of Natunbasti area in the district town and his wife Munni Akhtar, 38, were admitted to Rangpur Medical College Hospital.
Three passengers of a human hauler were reported to be injured in another road crash at Moinaguri Camp in the town.
In Thakurgaon, two people including a minor died in separate road accidents in Ranisankail and Sadar upazila.
The deceased were identified as Habibullah, 6, son of Tayab Ali of Chandanhot village in Ranisankail upazila and Abdul Awal, 32, son of Saikat Ali of Haripur upazila.
A micro-bus hit Habibullah while he was crossing a road in Ranisankail around 2 pm killing him on the spot, said Abdul Mannan, officer-in-charge of Ranisankail Police Station.
In another incident, Abdul Awal died when a tractor his motor-cycle killing him on spot and injuring his wife in Shibganj area of Sadar upazila, said Ashikur Rahman, officer-in-charge of Sadar Police Station.
In Naogaon, a man was killed while two others sustained injuries as a bus hit a battery-run auto-rickshaw on Potnitala-Sapahar road in Patnitala upazila around 7:30 am.
The deceased was identified as Dudu Mia, 50, driver of the auto-rickshaw.
Officer-in-charge of Patnitola Police Station Porimal Kumar Chakrabarti said they seized the killer bus but its driver managed to flee.
The injured were admitted to the Upazila Health Complex.
In Dinajpur, at least 11 people were injured in two separate road crashes in Sikdarhat and Mohanpur Bridge areas in the district.
A tractor collided head-on with a motor-cycle injuring two, according to the Police Control Room of the district.
The duo was referred to Dhaka Medical College and Hospital from a local hospital as their conditions worsened.
In another incident, a tractor hit a micro-bus injuring nine people while it was coming from Fulbari to Dinajpur near Mohanpur Bridge around 1:30 pm.
In Lalmonirhat, two motor-cycle riders were killed on Friday night as a Burimari-bound train crushed their motor-cycle at Kakina Kazirhat Rail Crossing in Kaliganj upazila.
The deceased were identified as Abul Kalam Azad, 37, son of Abu Bakar of Gongachora upazila in Rangpur and Alikuzzaman Titu, 42, son of Abdul Gafur of same area.
Officer-in-charge of Kaliganj Police Station Makbul Hossain said after the accident police in association with the officials of Fire Service and Civil Defence took the duo to Rangpur Medical College Hospital where doctors declared them dead.