Smoke and flames were visible over a wide area and police mounted a cordon in Yarwood Street, near the main entrance to the shop.
Soldiers forming a cordon around the police station became involved, and a wall was demolished by a British tank as they struggled to ‘collect’ the men, the MoD said.
Dozens of people living in Cromwell Road in the Maindee area of the town were told to leave their homes as a police cordon was thrown around the area early yesterday.
The protesters were met at the factory gates by a cordon of police officers, and around 500 people were arrested.
Miami riot police threw up a cordon around the home and fanned out across the city.
The area was not evacuated because police believed the site cordon was ample and there was no ‘immediate danger’.
Search specialists and sniffer dogs were also deployed as police extended the cordon to more than 300 metres from the deserted bus.
Yards away, police officers manned a cordon around the house, and tarpaulins hung over the charred first floor window where firefighters are thought to have made the discovery of the bodies.
Following the discovery, police threw a cordon round the area and set up a 24-hour guard to protect the site.
Some 20 minutes later a cordon of 40 more police officers surrounded the marchers to protect them in preparation for the march.