Police have arrested 61 people in Mong Kok in an anti-vice operation that ended at 2am today.

District Special Duty Squad officers from Mong Kok, together with Immigration officers and Telecommunications Authority staff, began the raids on 60 locations in the district at 3pm yesterday. They arrested three men and 58 Mainland women aged between 16 and 49.

Fifty-seven of the women are two-way permit holders who were arrested for breaching conditions of stay. The remaining woman is an illegal immigrant.

One man was arrested for managing a vice establishment, another for possessing poison and the other for having a radio transmitter without a licence.

Police also removed 176 vice signboards during the operation.

Among the 57 female two-way permit holders, six were charged with breach of conditions of stay and will appear in North Kowloon Magistrates' Courts later today. The Immigration Department is following up on the rest.