Seven employers and 25 illegal workers were netted by police and immigration and labor authorities in multiple joint raids carried out across Hong Kong over a three-day period this week.

The joint operation targeted 40 sites, including restaurants, hotels and so-called food factories, Sing Tao Daily reported.

The illegal workers – 18 men and seven women aged between 24 and 66 – were from India, Indonesia, Bangladesh, Vietnam, Nepal and mainland China, Oriental Daily reported. They were paid about HK$200 to HK$400 (about US$25 to US$50) a day, it said.

The minimum wage in the city for an eight-hour day works out at HK$260, on top of which employers must pay a percentage of the salary into the mandatory pension fund and other levies.