Some 169 foreigners were over the weekend rescued from traffickers in different places in Nairobi.
In the first incident, detectives from the Directorate of Criminal Investigations (DCI) Special Crimes Prevention Unit said the victims who are aged 19 to 45 are currently in custody.
The first group of 79 was rescued from a house in Mlango Kubwa area, Nairobi.
Detectives acting on information from the public rescued 79 foreigners, 75 of them being Comorians, three Ugandans and a Congolese.
DCI also said that 90 other victims were rescued from different parts of Nairobi.
They included 86 Comoros, three Ugandans and a Somali citizen.
DCI boss George Kinoti said the smugglers behind the victims trafficking are yet to be arrested.