Agitating workers at a construction site went on a rampage torching six vehicles after security guards opened fire on them while they were protesting against non-payment of dues by the contractor.
Two workers were injured during the protests at the construction site in Sector-110 area in Noida on the outskirts of the capital.
Four guards have been arrested in this connection, SHO Dharmendra Chauhan said, adding the injured were taken to the hospital where condition of one of them is stated to be stable, while the other has been discharged.
After the incident, angry workers set ablaze six vehicles, police said.
The violence prompted authorities to deploy PAC in the area and senior police officers led by SSP Preetinder Singh rushed to the clash site and pacified the workers, police said.