Harare: A violent crackdown continued Friday in Zimbabwe as rights groups alleged that women had been raped during house-to-house searches, while the government criticised a report by its own rights commission that said security forces had used "systematic torture".

Zimbabweans say abuses have not calmed since President Emmerson Mnangagwa on Tuesday denounced the violence as "unacceptable". The unrest began last week as people protested a steep increase in fuel prices that made gasoline the world's most expensive. The government accuses the opposition of stirring up trouble.

At least 12 people have been killed in the unrest over rising petrol prices and economic instability in Zimbabwe. Credit:AP

The army asserts that uniformed perpetrators of abuses are "bogus elements" out to tarnish its image.

Fearful residents in poor and working-class suburbs of the capital, Harare, and second city, Bulawayo, are locking themselves in at night. At least 12 people have been killed in the unrest and more than 300 wounded, scores with gunshot wounds, doctors and rights workers have said.