Ukrainian President Viktor Yanukovich went on sick leave on Thursday after a bruising session of parliament, leaving a political vacuum in a country threatened with bankruptcy and destabilized by anti-government protests.
The 63-year-old president appears increasingly isolated in a crisis born of a tug-of-war between the West and Ukraine's former Soviet overlord Russia. A former president said this week the violence between demonstrators and police had brought the country to the brink of civil war.