South Africa's president Jacob Zuma faces crucial no-confidence vote

South Africa's parliament is preparing to vote on a motion of no confidence in embattled President Jacob Zuma that could force him to resign after months of growing anger over alleged corruption.

Update 4.30pm: South Africa's parliament has begun voting on a no-confidence motion in President Jacob Zuma amid numerous allegations of corruption.

While the president has survived several such votes in the past, this is the first to be conducted by secret ballot, and if it succeeds he will have to resign immediately.