Ukraine parliament to work on constitution bill

KIEV (Reuters) - The parties in Ukraine's deadlocked parliament agreed on Thursday to try to draft a joint bill on constitutional amendments that could be put to a vote as early as next week, the speaker said.

Opposition leaders, backed by protesters in the streets, want a return to a constitution enacted in 2004 that would move substantial powers over the government from the president to parliament - a proposal rejected by President Viktor Yanukovich and his supporters, who have had a majority in the legislature.