"234 people were arrested between December 26 and February 2. None of them are in custody any more," said Viktor Pshonka, adding that charges against them would be dropped if buildings currently occupied by demonstrators were evacuated.
President Viktor Yanukovych, who for more than two months has faced relentless protests demanding he resign, signed a law early February agreeing to amnesty all detainees.
But he set one condition -- that protesters evacuate all public buildings they are occupying, such as Kiev city hall next to Independence Square, where demonstrators are camping out in what has become a barricaded anti-government enclave.
The protests erupted in November after Yanukovych ditched a key EU trade pact in favour of closer ties with Russia, angering pro-EU parts of the population.