Beijing police have smashed three prostitution rings involving 83 people, the municipal Public Security Bureau said on Thursday.

More than 250 police officers in the capital, divided into 18 groups, arrested the 83 suspects in the city's Chaoyang district and in Xianghe, Hebei province, on April 10, the bureau said.

Among the suspects, three were organizers and 27 prostitutes from foreign countries, the police said, without disclosing the nationalities.