Mugabe was dethroned in a military coup in November 2017, was hospitalised in Singapore for health issues since April and passed away at a hospital in Singapore, reported CNN
Zimbabwean President Robert Mugabe is reportedly fighting for his life in a Singapore hospital with an undisclosed illness.
Mnangagwa, the country's former vice president, swore an oath of office to serve as interim president until a leader is elected at the polls next year.
The 93-year-old autocrat is yet to resign and was said to be 'buying time' to negotiate an end to his 37-year-long reign.
Wild celebrations broke out at a joint sitting of parliament when Speaker Jacob Mudenda announced the news.
World leaders from across the political spectrum congratulated Joe Biden who became the president-elect of the United States, and Kamala Harris who made history as the first female to serve as the vice president.
Few in Zimbabwe dared to anger 'Gucci Grace' as Grace Mugabe was called. Robert Mugabe's wife was ruthless and terrifying, and her ambition clearly provoked the army's coup on Wednesday.
The army said it was targeting 'criminals around Mugabe' who have sent the nation spinning into economic despair.
The keynote address will be given by United States President Donald Trump