The government threatened Tuesday to demolish squatter shacks in what it called an urban beautification campaign after the arrests of about 10,000 street traders in the capital, a stronghold of the opposition. The opposition accused the ruling ZANU-PF party of trying to provoke confrontations so it can declare a state of emergency before the tattered state of the economy leads to riots. "They are now going for broke," said Paul Themba-Nyathi, spokesman for the opposition Movement for Democratic Change. "It is obvious these are all punitive measures aimed at urban people who voted against ZANU-PF." A five-day blitz against street vendors and flea markets already has sparked clashes between the traders and police, and unrest has been reported elsewhere. Police Chief Superintendent Oliver Mandipaka said Monday that 9,653 people have been arrested. On Tuesday, the government set a June 20 deadline for demolishing unauthorized buildings in Harare unless the residents appeal and receive a grace period. The demolitions could evict more than a million urban poor in the middle of the Zimbabwe winter.