Piotr Wawrzyk told state news agency PAP: "If we came forward with such an initiative by ourselves, that is more difficult to carry out because various countries in the UN have to agree."
"But if the EU and its delegation [makes such a move] then it cannot be ignored."
Meanwhile, President Andrzej Duda issued an appeal on behalf of Poland, a member of the UN Human Rights Council, for "international solidarity in this situation."
Duda added in a Twitter post on Sunday evening that "the actions of the Russian authorities towards Alexei Navalny must not be without consequences for that country’s relations with the international community."
Polish Prime Minister Mateusz Morawiecki called for the release of Navalny after he was arrested on his return to Moscow.
"A quick and unequivocal response at the EU level is essential," Morawiecki wrote on Twitter, adding: "The detention of Alexei Navalny is another attempt to intimidate the democratic opposition in Russia."
'Alexey, don’t give up!': Polish FM
Polish Foreign Minister Zbigniew Rau tweeted: “I strongly condemn the detainment of Navalny and hope for his immediate release. I express my solidarity with all Russian people who share the ideals of the detained Russian opposition leader. Alexey, don’t give up!”
Navalny was arrested on arrival in Moscow on Sunday after he flew home to Russia from Germany, where he had been treated, for the first time since he was poisoned last summer.
The Reuters news agency reported that the move could reignite political pressure on the West to tighten sanctions on Moscow, especially against the contested USD 11.6 billion Nord Stream 2 project to build a gas pipeline from Russia to Germany.
In a case that drew wide international attention, Navalny was poisoned last summer by what German military tests showed was a Novichok nerve agent, a version of events the Kremlin rejects.
A Russian judge on Monday remanded Navalny in pre-trial detention for 30 days for violating the terms of a suspended jail sentence.
The ruling may be the prelude to him being jailed for years, Reuters reported.
(pk-gs)
Source: PAP/IAR/Reuters