Harare: Zimbabwe President Robert Mugabe was fired as leader of the ruling Zanu-PF party on Sunday and replaced by Emmerson Mnangagwa, the deputy he fired this month, sources at a special ZANU-PF meeting to decide Mugabe's fate told Reuters.

"He has been expelled," one of delegates told Reuters.

"Mnangagwa is our new leader." Three other delegates confirmed Mugabe's dismissal.

Mugabe must resign or be impeached: Zanu-PF

Zimbabwe's ruling Zanu-PF party said on Sunday that Mugabe must resign as the country's president or face impeachment as it also resolved to expel his wife Grace.

A party meeting in Harare agreed that "Mugabe resign forthwith from his position as president of Zimbabwe" by midday Monday or face impeachment proceedings.

Party spokesman Simon Khaya Moyo added that "Grace is on the list of people to be expelled from the party".

Elation at impending overthrow

On Saturday, hundreds of thousands of people flooded the streets of Harare, singing, dancing and hugging soldiers in an outpouring of elation at Mugabe's impending overthrow.

His stunning downfall in just four days is likely to send shockwaves across Africa, where a number of entrenched strongmen, from Uganda's Yoweri Museveni to Democratic Republic of Congo's Joseph Kabila, are facing mounting pressure to quit.