Ukraine's opposition leader Vitali Klitschko has called on the country's Interior Minister Vitali Zakharchenko to resign over the use of force by riot police.

In the most recent wave of anti-government protests in Kiev, nearly 20 people, including former Interior Minister Yuriy Lutsenko were injured in clashes with the police.

Klitschko noted that if the demand for Zakharchenko's departure was not satisfied, his party would block the work of parliament, resuming on Tuesday after the winter recess, reports ITAR-TASS.

"We also propose to set up a temporary commission to investigate all cases of illegal use of force," Klitschko, leader of the UDAR political party, said.

The former world boxing champion has been a prominent figure in the anti-government protests, which began in November, after Ukraine's President Viktor Yanukovych backed out of an Association Agreement with the EU.

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