Leaders of Zimbabwe's ruling Zanu-PF party are expected to meet today to draft a resolution to dismiss President Robert Mugabe if he refuses to step down, the Reuters news agency reports, quoting a senior party source.

The unnamed source told Reuters that the party would impeach Mr Mugabe if he does not leave office:

If he becomes stubborn, we will arrange for him to be fired on Sunday. When that is done, it's impeachment on Tuesday."

There is no independent confirmation of the report.

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