Zimbabwe's Robert Mugabe vows to step down if defeated

Zimbabwe's President Robert Mugabe has said he will quit after 33 years in power if he loses Wednesday's election.

His remarks came as Prime Minister Morgan Tsvangirai's Movement for Democratic Change (MDC) party accused Zanu-PF of doctoring the voters' roll.

The BBC's Nomsa Maseko was the journalist who asked Mr Mugabe if he would step down if he lost.