South Africans head for the polls

South Africans are going to the polls in what is expected to be the most competitive general election since the end of apartheid in 1994.The ruling ANC - led by Jacob Zuma - is expected to win, but it could lose its two-thirds majority in Parliament.It is being challenged by a new party which split from the ANC last year - as well as by the long-standing official opposition, the Democratic Alliance.The Independent Electoral Commission says it expects a high turnout.Some 20,000 polling stations are being used for the more than 23 million registered voters.Mr Zuma said the emergence of the opposition Congress of the People (Cope) had "re-energised" the ANC.