Article published on the 2008-12-09 Latest update 2008-12-11 09:21 TU
"I don't know on what basis does the President of France, the European Union, the Foreign Minister of Belgium in Brussels, is calling for our President to step down," Ndlovu said.
US President George W Bush also called for an end to Mugabe's "tyranny" on Tuesday and has urged African leaders to join the Western powers calling for him to leave office.
Neighbouring Botswana has also taken a hard line against Mugabe and has suggested that the region should cut off fuel shipments to Zimbabwe to force him from power.
"What authority does he [Bush] have to do so? It is totally unacceptable, and obnoxious, and is an insult, not only to Zimbabwe, but all African people and all African governments," said Ndlovu.
"That is a colonialist, racist attitude, which should never have found its ugly head in Zimbabwe, or in any African country," he added.