The Polish and Lithuanian presidents have officially opened a new pipeline bringing gas from Lithuania to Poland after Russian gas giant Gazprom turned off the tap.
Poland's president has visited a Ukrainian town near Kyiv that suffered a huge level of destruction following Russia's invasion.
All sanctions against Russia should be on the table, including closing of both Nord Stream pipelines and stopping Russia's access to SWIFT, Prime Minister Mateusz Morawiecki said before a Saturday meeting with German Chancellor Olaf Scholz.
Polish Prime Minister Mateusz Morawiecki and Lithuanian President Gitanas Nauseda will meet German Chancellor Olaf Scholz in Berlin on Saturday to discuss sanctions on Russia, a Polish government spokesperson has said.
The presidents of Poland, Lithuania and Ukraine have issued a joint declaration condemning Russia's recognition of two breakaway regions in eastern Ukraine.
Andrzej Duda, the Polish president, appealed in Kiev on Wednesday to Russian President Vladimir Putin and "Russian decision-makers" to halt an order to start military operations against Ukraine.
Warsaw will host a summit of the 'Bucharest Nine' format presidents, who will meet on Friday to discuss Ukraine and the security situation in Central and Eastern Europe, according to a presidential official.
The Polish president has described a joint declaration by heads of state of Poland, Lithuania and Ukraine as an expression of solidarity and support for Ukraine.
The presidents of Poland, Lithuania and Ukraine on Thursday appealed to the international community for sanctions on Russia for its aggressive policy towards Ukraine.
According to unofficial information obtained by PAP, a meeting of Polish officials is planned for Tuesday at which the possibility of triggering Nato's Article 4 will likely be discussed.