The police said that 49 persons were caught to be living in Gozo illegally.
On Monday, the police said that searches were conducted in various localities in Gozo.
The majority of the persons caught were found in Marsalforn and Victoria. Most of them are from Africa or Eastern Europe.
They were all taken to detention centres.
The police also said that a number of persons who had been caught living illegally in Qormi have been deported.