WARSAW, Poland (AP) — Poland's president says his nation and three others in the region are united in opposing a pipeline that would deliver natural gas directly from Russia to Germany because it would harm Europe's ability to create an efficient energy system.

President Andrzej Duda spoke Saturday in Rzeszow, southern Poland, on the last day of a two-day meeting with the presidents of Hungary, Czech Republic and Slovakia.

Duda described the Nord Stream 2 project, which would bypass traditional transit pipelines in Ukraine and Slovakia, as having "no economic justification," describing it as a political project implemented by Gazprom on behalf of Russia.

Polish media reported that the four nations, known as the Visegrad Four, were united in taking steps to decrease their dependence on Russian energy.