Ukraine's former interior minister, Yuriy Lutsenko, who was detained for abuse of office last month, has appealed his arrest in the European Court of Human Rights, his party said on Tuesday.
Prosecutors charged Lutsenko with abusing his authority while investigating the poisoning of former president Viktor Yushchenko.
Lutsenko, who faces up to 12 years in jail if found guilty, earlier appealed the decision by a Kiev court to sanction his arrest.
Yushchenko was poisoned in the run-up to Ukraine's presidential election in 2004, leaving him with a badly-disfigured face and looking years older.
Yushchenko accused Russia of "attempted murder," but Moscow has denied any involvement.
Former Economics Minister Bohdan Danylyshyn, another member of opposition leader Yulia Tymoshenko's former cabinet, was given political asylum in the Czech Republic last week.
Tymoshenko, who was ousted as prime minister in a no-confidence vote in March following her narrow defeat to Viktor Yanukovych in last February's presidential election, has been accused of illegally diverting $425 million meant for environmental projects into pension funds and has been questioned on numerous occasions.
KIEV, January 18 (RIA Novosti)
