The blast is likely to be blamed on Boko Haram militants, casting doubt on the recently signed ceasefire pact.
Jeff Radebe said DNA samples of all victims have arrived at a Stellenbosch lab where they are being analysed.
The men were returning from a vegetable market when gunmen intercepted the bus.
Ian Khama's BDP is expected to win a reduced majority, extending the grip on power it has held since 1966.
Israel is keener than ever to ensure Jordan’s delicate situation is shored up.
The country's biggest union says the first lady singled out reporters from private papers.