Thirty two illegal Indian immigrants have been arrested during a crackdown at the 2012 Olympics Games site in east London, official sources in London has said.
In all, nearly 100 people who did not have the right to work in the UK were arrested, the UK Border Agency (UKBA) said.
Of those arrested on suspicion of immigration offences, 32 were from India, 12 from Nigeria and seven from the Ukraine, the agency said.
The officers made 93 arrests between April and late November. A total of 41 people were arrested after using fake passports or other false documents.
The arrests come amidst reports that organisers of the 2012 games were employing cheap agency workers mostly from overseas, in breach of labour agreements.
Tony Smith, senior director for the UKBA's Olympic 2012 programme, said: "The UK Border Agency has officers based permanently at the Olympic site to check the identity of people seeking work and help ensure the Games are delivered on time, with a workforce legally entitled to be there".
He added, "We're working closely with employers and contractors, giving presentations and advising them what checks they need to make to prevent illegal working. My officers offer forgery awareness training and conduct visits to businesses to ensure that their policies and procedures are up-to-date.
"By working with other agencies we can help make the Olympics a safe and enjoyable event for all."