Russian police have uncovered an underground city hidden beneath a Moscow market.

The series of subterranean rooms housed over 200 illegal migrants from Asia.

The city contained a factory complete with sewing machines and tables where the illegal migrants were kept to sew clothes.

The underground complex was also equipped with a market, cafe, cinema and casino.

It is not the first time Moscow’s Federal Migration Service have discovered a clandestine factory in 2011 a similar settlement was found in an abandoned Soviet-era bomb shelter.