Chhatra League activists attacked a police outpost in Chandpur Sadar upazila on Monday.
The incident took place around 10:00am, police said.
Locals said police had detained eight youths on charges of getting high on drugs and making noise, thereby disturbing the Esha and Tarawih prayers at Begum Jame Mosque.
In retaliation, in a sudden attack on the police outpost at around 10:00pm, their fellows vandalised two motorcycles and furniture.
Up to 40 Chhatra League activists were allegedly part of the attack. They also assaulted the police officers who were present at the outpost.
Superintendent of Police Amir Zafar and Additional Superintendent of Police Kamrul Islam and Chandpur Model police station Officer-in-Charge Abdul Kaiyum visited the site that night.
District Awami League Vice President Osman Gani Patowari rushed to the scene and tried to resolve it.
Kaiyum said they had filed a case against 30 or 35 persons of whom six were named.
Speaking to the Dhaka Tribune, Zafar termed the incident “unexpected” and said those who were involved in the attack would be arrested soon.


