Police in the northern province of Bac Giang have arrested a police officer on suspicion of causing the death of a local man in custody last month.
Initial investigation indicated that the 25-year-old Nguyen The Nghiep, former second lieutenant of Tan Yen District's police, beat Nguyen Van Khuong, 21, to death on July 23.
Khuong had been taken into police custody after traffic cops stopped him. His crime was, they said, was driving his girlfriend around on his motorbike without wearing a helmet.
Hundreds of mourners carried Kuong's coffin to the Bac Giang People's Committee headquarters to demand an inspection during his funeral procession on July 25.
Police said their investigation is still underway.