, Sept. 24 -- The authorities of Nasa Group on Wednesday declared permanent closure of 16 factories in Ashulia, forcing its workers to block Bypile-Abdullahpur highway demanding payment of dues.

Earlier in the morning, several hundred workers of Nasa Group took to the streets demanding the authorities clear their dues.

At one stage, they hurled brick chips targeting police, creating chaos.

A chase and counter chase took place, triggering a clash.

Police used water cannons, and tear gas shells to disperse workers from the highway.

Abdul Hannan, officer-in-charge of Ashulia Police Station, said a worker was slightly injured in the clash and he was given first aid.

The vehicular movement on the highway came to normal after one hour of ...