Ukraine's parliament has concluded a session without approving changes to the constitution that would have curtailed the powers of the president.
Opposition lawmakers on February 4 failed to get the necessary support to push through a motion to revert to an earlier version of the Ukrainian Constitution that limited presidential powers, Radio Liberty reports.
The opposition would have needed support from at least 237 of the 447 deputies in parliament to push through the motion.
Klitschko earlier told parliament such reform was needed to end the crisis that has persisted in the two months since the government turned its back on closer ties to the European Union.
As reported earlier, Ukrainian opposition was preparing to debate changes to the constitution that would weaken the powers of the president.