He called the incident an "unprecedented attack" not only on Poland, but also on NATO and the European Union.
Polish forces, assisted by NATO allies, shot down some of the drones after they crossed into Polish airspace during a massive Russian strike on Ukraine.
Sikorski told reporters the airspace was breached 19 times in the overnight assault.
"We have no doubt this was not an accident," he said, adding that Polish, Dutch, Italian and German forces all took part in the defensive operation.
Sikorski said the foreign ministry summoned Russia’s chargé d’affaires in Warsaw earlier on Wednesday to deliver a formal protest.
The ministry in a statement condemned Russia’s "flagrant breach of norms and obligations under international law” and said that the violation of Poland’s airspace by Russian drones posed a threat to civilians, infrastructure and aviation safety.
Poland has formally requested NATO consultations under Article 4 of the alliance treaty, which allows members to convene whenever the territorial integrity or security of any member is threatened.
NATO ambassadors met in Brussels on Wednesday to discuss the matter, and Sikorski said defence ministers may also be called in.
'Massive violation of NATO and EU airspace'
"We have never before faced such a massive violation of NATO and EU airspace," he said.
The Polish foreign minister also briefed US Secretary of State Marco Rubio, Ukraine’s top diplomat and EU foreign policy chief Kaja Kallas, among other partners.
He thanked NATO Secretary-General Mark Rutte and European Commission President Ursula von der Leyen for their public support.
Sikorski said Poland’s defence systems and emergency response worked effectively during the hours-long overnight attack.
“All procedures at the political, military and civil defence levels functioned as they should," he said.
Poland, NATO 'will not be intimidated'
He declared that Poland and NATO “will not be intimidated" by Russia.
“What Poles experienced last night, Ukrainians endure almost every night on a much greater and more tragic scale. We must show solidarity with Ukraine and not fall for Russian disinformation,” Sikorski said.
The foreign minister also reiterated Poland’s need for additional air defences, including Patriot missile batteries and what von der Leyen has described as a “drone wall” along NATO’s eastern flank.
Sikorski dismissed Moscow’s denials that the drones were Russian.
“If this is their way of admitting responsibility, then that’s some progress,” he said. “But we would prefer they simply stop sending drones over Poland.”
He added that Poland will continue to press NATO for stronger collective defences.
“Russia is testing our resilience,” Sikorski said. “It is up to us, and our allies, to ensure they do not succeed.”
(gs)
Source: IAR, PAP, TVP Info, gov.pl