"The accident took place last night near (northwestern) Bogra. Four of them died instantly and others succumbed to their wounds as they were rushed to the hospital," Officer-in-Charge of the nearby police station Aslam Ali said.
He said the rest two of those who lost their lives in the crash were the driver of the hired police van and a cleanliness worker of police department.
The policemen, he said, were posted in the communication wing of the law enforcement agency while they were going to join their new assignment in Dhaka.