Gazipur, Nov. 4 -- Law enforcement agencies maintained a strict vigil in Gazipur on Wednesday to prevent violence amid the labour unrest as most factories reopened and workers returned to their workplaces.

Tension erupted in the Noljani area in the morning when workers attempted to block the Dhaka-Gazipur road by dumping garbage and setting it on fire, said witnesses.

Law enforcement personnel quickly dispersed the protesters by firing tear gas shells and detained two people during the incident.

Several factories in the area announced holidays for the day following the unrest.

Industrial Police said most factories in Gazipur reopened in the morning, allowing workers to resume their duties.

Additional police and other law enforcement ...