[JURIST] Ukrainian President Viktor Yushchenko [official website; Wikipedia profile] sacked his cabinet Thursday and accepted the resignation of his national security chief in the face of accusations of corruption only eight months after he came into office on pledges to halt graft. Yushchenko named Yuriy Yekhanurov, a regional governor, as acting prime minister and ordered him to form a new government following the dismissals. He also ordered an investigation into the allegations of corruption that prompted four officials to resign [JURIST report] in the past two weeks. Yushchenko was elected in December 2004 [JURIST report] after a disputed election that monitors said was plagued by fraud in favor of former President Viktor Yanukovych. Yushchenko campaigned on a promise of cleaning up the Ukrainian government. BBC News has more.