Three suspected illegal immigrants hired as Olympic football security guards were arrested by police hours before the first event.
The suspected illegal immigrants had been contracted in to provide security at the site and had already been installed at their posts, it is believed.
It is understood those arrested were brought into Newcastle by Locog from a security company based in the south of the country.
Locog were unable to comment on the incident, but a spokesman from the Home Office confirmed the swoop took place on Wednesday.
The spokesman said: ‘These arrests show that UK Border Agency security checks are working.
‘The responsibility for ensuring employees have the right to work in the UK rests with the employer.
‘The UK Border Agency is working closely with employers and contractors at Olympics venues to prevent illegal working.’
The workers were not thought to be employees of G4S, as the beleaguered security firm was replaced at St James’ Park by local companies due to its shortfall of staff.
Police helped Border Agency officers carry out the arrests at St James’ Park on Wednesday.
Home Office officials were unable to release the nationalities or ages of those arrested, but confirmed they had carried out the arrests.
Meanwhile, a Northumbria Police spokesman said: ‘On Wednesday, July 25, officers carried out a number of arrests in conjunction with the UK Border Agency in connection with suspected immigration offences.’
Last week two Olympic security guards were arrested on suspicion of being illegal immigrants at Coventry’s Ricoh Stadium.
One was due to be a supervisor for G4S.
The Pakistani pair, aged 21 and 24, are believed to have been working for several weeks at the ground, which is one of the 2012 football venues.
Locog further came under fire after fans reported delays getting into St James’ Park prior to Mexico’s goalless draw with South Korea, with some missing the match.
Newcastle City Council’s director of operations, Stephen Savage, said: ‘Locog are responsible for ticketing, sales and collections, and as soon as the city council became aware of the delays we made the strongest representations to Locog to tackle this issue.
‘I’m pleased they have now come up with a solution to reduce delays.
‘The atmosphere at yesterday’s games was absolutely marvellous and the fans of Mexico, Korea, Gabon and Switzerland were a credit to their nations.’