Police in Kapenguria have arrested 28 foreigners who were travelling from Kakuma Refugee Camp to Nairobi without valid documents on Wednesday.
Kapenguria police boss Wanjuu said they intercepted 23 Somalis, two Sudanese and three juveniles at Tartar junction roadblock along the Lodwar-Kitale highway.
Officers suspect they had either escaped from the camp or entered the country illegally.
The Somali and Sudanese nationals were found outside the designated area of the camp without authority from the Refugee Department.
The suspects have been detained at Kapenguria police station and will be taken to court.