Harare: Several people have been killed and about 200 arrested during protests in Zimbabwe, two days after the government raised the price of fuel in an attempt to tame the worst economic crisis in a decade.

Police fired tear gas in the capital of Harare and the second city Bulawayo, where protesters barricaded roads, burned tyres and chanted songs against President Emmerson Mnangagwa, who increased fuel prices in the hope of easing a currency shortage.

Protesters gather during demonstrations over fuel prices in Harare, Zimbabwe, on Monday. Protesters have blocked roads in some parts in Zimbabwe's capital after the government more than doubled the price of petrol. Credit:AP

Security Minister Owen Ncube said some people died at the protests, but gave no further details. He blamed the unrest on the main opposition party and political rights groups.

"Regrettably, this has resulted in the loss of life and property, including injury to police officers and members of the public. Full investigations are underway," Ncube said in a statement.