Ukraine's ruling pro-Western coalition has officially collapsed, the speaker of the Ukrainian parliament says.
President Viktor Yushchenko has been involved in a long-running dispute with Prime Minister Yulia Tymoshenko.
The president's Our Ukraine bloc left the coalition earlier this month. Parliament now has 30 days to try to form a new ruling coalition.
If those efforts fail, Mr Yushchenko can dissolve parliament and call a snap election.
The Our Ukraine party pulled out of the coalition on 3 September after the Tymoshenko Bloc sided with the pro-Moscow opposition Party of Regions to pass several laws that Mr Yushchenko saw as a threat to his presidential powers.
"I officially declare the coalition of democratic forces... in Ukraine's parliament dissolved," parliament speaker Arseny Yatsenyuk announced on Tuesday.