Italian Prime Minister Matteo Renzi | Andrew Gombert/EPA Matteo Renzi: Italy will deal with migrant crisis on its own Italian prime minister said Bratislava summit was a bust.

Italian Prime Minister Matteo Renzi has threatened to go it alone if the EU doesn't come up with a plan to deal with the mass influx of migrants on the Continent.

"If Europe continues this way we will have to organize ourselves autonomously on migration," Renzi said in New York, news agency Ansa reported Monday. "Italy will do it alone, it can do it. But this is a problem for Europe."

The EU’s deal with Turkey to stem the flow of refugees crossing to Greece created a surge of people arriving in Italy over summer.

The Italian prime minister also renewed his criticism of Friday's informal EU leaders summit in Bratislava, saying there had been "many words" but no clarity on how to handle migrants entering Europe from Africa.

"We didn't take it well. [European Commission President Jean-Claude] Juncker says many beautiful things but we don't see the facts," Renzi said, taking aim at the roadmap for European integration proposed by the Commission president in Bratislava.

Renzi said he had tried to defend Italy's national interests during the meeting of 27 EU leaders — minus Britain's Theresa May — but he was disappointed.

"The mountain — for now — has given birth to a mouse," Renzi said.