South African President Jacob Zuma is expected to maintain his leadership of the ruling African National Congress party, after a vote to choose who will head the organization into the 2014 presidential election.

Votes were being counted early Tuesday after 4,000 delegates at a party conference made their choices for the top six leadership positions. Results are expected later in the day.

The ANC has been in power in South Africa since 1994, and its support means the party leader is likely to win the 2014 vote.

President Zuma is facing a challenge by Deputy President Kgalema Motlanthe for the ANC chairmanship.

Motlanthe, who withdrew from the race to be the party's number two, will likely be replaced by wealthy businessman Cyril Ramaphosa.

Also Tuesday, four white men described as having “right-wing” political beliefs are to appear in court Tuesday to face charges that include a plan to attack the ANC conference.

Police arrested the men Sunday and authorities say the charges include treason and terrorism.