"We want synchronization works via Poland to be completed as soon as possible," he said at a news conference after a meeting of the prime ministers of the three Baltic countries and Poland in Vilnius on Friday.

Lithuanian Prime Minister Saulius Skvernelis told reporters that a final political agreement on the Baltic grids' synchronization should be signed next June in the presence of EU leaders.

Lithuania, Latvia and Estonia in mid-February called on EU leaders to allocate funds for the synchronization in the bloc's new budget.

The Baltic nations aim to disconnect their grids from the post-Soviet energy system in an effort to reduce their dependence on Russia. Lithuania plans to synchronize its grid with the continental European system by 2025.