20 Burkina Faso nationals have been nabbed at the Babile inland post.
They are made up of 18 males and 2 females.
Their ages range from 15 to 28.
According to the Ghana Immigration Service, they were nabbed at about 1900 GMT at the Babile inland checkpoint by vigilant immigration officials.
They were onboard an O.A. bus with registration number GR 6499, en route to Sampa, Techiman and Kumasi.
The Immigration Service said their migration into Ghana is an economic-related one.
However, they entered Ghana via unapproved routes.