Story highlights Gang targeted foreigners in Manila casinos

Offered losing gamblers high-interest loans or kidnapped them

(CNN) Police in the Philippines have arrested dozens of suspects in a major crackdown on kidnapping gangs targeting rich foreigners in Manila.

The case came to light after a 48-year-old Singaporean woman who police identified as Wu Yan was kidnapped on July 17 while playing baccarat at Solaire Resorts and Casino in Pasay City, Metro Manila.

According to a police statement , Wu was approached by two men who befriended her and encouraged her to come and play with them at another casino nearby. After the three entered a car, the men took her to a rented property in Paranaque City where they held her for ransom.

Wu was held for almost four days during which she was beaten and forced to make a video pleading to her family in Singapore to send $180,000 for her release, Singapore's Straits Times reported

Police launched a raid Tuesday which resulted in Wu's rescue and the arrest of 43 suspects.