President Levy Mwanawasa – a key Mugabe critic – is recovering from a June 29 stroke.
The deportations follow a string of xenophobic attacks. The crackdown began on as South Africa moved to convene negotiations between Zimbabwe's warring political parties.
Critics say The International Criminal Court's move Monday to indict Sudan's president for war crimes may hamper peace.
As dispute persists in wake of presidential election, the country seems poised between negotiated settlement and outright civil war.
Zimbabwe's opposition rejects calls for a unity government, however, citing perceived bias of mediator, South African President Thabo Mbeki.