Beginning in May 2008, the number of Zimbabweans in Zambia began to increase significantly; the influx consisted largely of Zimbabweans formerly living in South Africa who were fleeing xenophobic violence there. Nearly 60,000 refugees live in camps in Zambia, while 50,000 are mixed in with the local populations. Refugees who wish to work in Zambia must apply for permits, which can cost up to $500 per year.