Tanzania has started an operation to expel foreigners with illegal working permits.
Many foreign workers, especially from neighbouring countries, will be affected by the decision as it is difficult and expensive to attain long-term permits.
The immigration office in Dar es Salaam says they know of at least 350 foreigners in Dar es Salaam alone who are working without legal documents.
From the biggest market in Tanzania – Kariakoo – to private English schools, immigration officer John Msumule said their investigation revealed that many foreigners enter the country with a tourist visa but end up working or doing business in the country illegally.
Many private schools hire English teachers from neighbouring countries such as Kenya and Uganda.