Three Vietnamese illegal workers were jailed for up to 16 months by Sha Tin Magistracy on July 29 and 30.
Immigration Department officers arrested two men, aged 34 and 58, during a raid in Kwai Chung on July 27.
They worked as porters at a logistics centre.
On July 28, officers arrested a 37-year-old woman hawking outside a Tuen Mun construction site.
They were charged for taking up employment while being a person who remains in Hong Kong without the authority of the Director of Immigration after having landed in Hong Kong unlawfully or being a person in respect of whom a removal order was in force.
Two of them were also charged with using a forged identity card.
