Poland's deputy foreign minister says a senior European Union leader will meet with the nation's prime minister to discuss ways of solving a political crisis in Poland that has strained ties with Brussels.

Alarmed by government moves which have paralyzed Poland's Constitutional Tribunal, the EU Commission has implemented the "rule of law" procedure aimed at protecting EU values including respect for law, and has threatened sanctions.

Deputy Foreign Minister Konrad Szymanski said Tuesday that recent talks have led to some understanding and paved the way for a meeting later in the day between Prime Minister Beata Szydlo and EU Commission Vice President Frans Timmermans, who said on Twitter he was to meet Szydlo in Warsaw.

The EU has urged Poland's lawmakers to find a solution to the constitutional crisis.