Six people, including three policemen, were injured in a clash between police and workers at Karnaphuli Export Processing Zone on Thursday afternoon.
Sajed Kamal, sub-inspector of EPZ police outpost, said an Ansar member assaulted a female garment worker of 'Kenpark-5' factory while searching her bag when she was going outside during the lunch break.
Following the incident, factory workers got together, beat staff members inside the factory and vandalised several vehicles.
The agitated workers also torched two motorcycles. On information, industrial police and EPZ police went to the spot and tried to bring the situation under control.