Harare: Leaders of Zimbabwe's ruling ZANU-PF party are meeting on Friday to draft a resolution to dismiss President Robert Mugabe at the weekend and lay the ground for his impeachment next week if he refuses to stand down, a senior party source said.

"There is no going back," the source said. "If he becomes stubborn, we will arrange for him to be fired on Sunday. When that is done, it's impeachment on Tuesday."

Mugabe is believed to be on the verge of resignation after he was presented with plans to unseat him via a vote of no confidence in Parliament, sources in Harare said.

Senior sources in the Zimbabwean military and the Movement for Democratic Change, the main opposition party, said preparations had been made for the vote of no confidence to end the president's 37-year rule in the country's parliament as early as Monday.