Cape Town - The movement of people from Zimbabwe to neighbouring African countries is a matter of concern in the region, South Africa's deputy foreign minister, Aziz Pahad, said on Wednesday."Of course, there is a genuine concern about the movement of people in the region. There's clearly a mass exodus of people from Zimbabwe moving into neighbouring countries," he told a media briefing at parliament."I wouldn't know where the estimates come from, but there is an estimate that we have close to two million undocumented Zimbabweans in South Africa. I'm not sure where the figures come from, but this is the figure that's doing the rounds all the time."