"Sergei Lavrov came here to lie about Russia's invasion in Ukraine," Sikorski told reporters on Thursday upon arriving at the OSCE Ministerial Council meeting.
"I will not listen to these lies," he added.
Sikorski also said that Russia's actions are contrary to the ideals of the OSCE, which include respecting national borders and human rights.
He described Lavrov's invitation as controversial, noting that while Russian diplomats are subject to European Union travel sanctions, the OSCE statutes allow for exemptions granted by the presiding country—in this case Malta.
"I will not sit at the same table with Mr. Lavrov," the Polish foreign minister stated.
"Let's remember the origins of the OSCE. They date back to the Helsinki Process in the 1970s during the Cold War, when the communist bloc wanted confirmation of the inviolability of borders in Europe, and the West sought respect for human rights," Sikorski said.
"Today, Russia respects neither borders in Europe nor human rights," he added. "Russia must leave Ukraine, and only then will this organization make sense."
Earlier, Czech Foreign Minister Jan Lipavský announced that he would leave the room during Lavrov's speech.
"I do not intend to listen to poisoned lies," Lipavský declared.
Ukrainian Foreign Minister Andrii Sybiha and US Secretary of State Antony Blinken were also among those attending the annual meeting of top diplomats from the OSCE's 57 member states.
(jh/gs)
Source: IAR, PAP