A police constable was killed and three others were injured in a road crash on Dhaka-Chattogram Highway at Suaganj in Sadar Dakkhin upazila early Wednesday.
The deceased was identified as Nur Hossain, 35, son of Abdul Haque of Laxmipur district.
Nazrul Islam, officer-in-charge of Sadar Dakkhin Police Station, said the accident took place around midnight when a police vehicle plunged into a roadside ditch after being hit by a truck from behind.
Nur was killed on the spot and three others injured.
The injured Assistant Sub-Inspector Mohsin Ali, Constable Ismail Hossain and the driver Ershad Mia were taken to Cumilla Medical College Hospital.
Later, a team of highway police chased down and arrested truck driver Jashim Uddin.