Soldiers spent Thursday morning clearing the central business district and warning people to leave by noon. Taxi queues were full of commuters attempting to find a way out.
Shop fronts were locked, and riot police surrounded the headquarters of the opposition Movement for Democratic Change and blocked off nearby streets.
Police arrested 18 people during a raid at the MDC headquarters, Zimbabwe Republic Police spokeswoman Charity Charamba said. The charges were not immediately clear, but Charamba said, in total, officers have taken into custody 26 people suspected of inciting violence during Wednesday's protests.
In announcing the new death toll -- double the three announced Wednesday -- Charamba said the army had been deployed in Harare to carry out government orders because "the situation still remains tense and our assessment shows we still require their assistance."
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