Russian police have detained nearly 500 Vietnamese workers at a garment factory in a Moscow suburb due to immigration and labor violations, RIA Novosti news agency said Thursday.
The news source reported that the Vietnamese immigrants lived with their families on the premises of the factory in the Moscow Region's village of Malakhovka where they worked sewing coats and jackets.
"Numerous immigration law violations were revealed," according to a police source.
RIA Novosti said around 10 percent of Russia's workforce is thought to come from outside the country and the country has been "struggling to cut the inflow of illicit immigrant workers."
Federal Migration Service said there were 340,000 immigrants in the capital, with some 155,000 of them unregistered. Moscow Mayor Sergei Sobyanin, however, believed that about two million illegal immigrants were living in Moscow, RIA Novosti reported.
Police were still searching for the owner of the factory, according to the Vietnam News Agency.