The times when mayors of Palermo, Florence and Naples could cash in on illegal immigrants are over, Italy's Interior Minister Matteo Salvini said, vowing that those resisting the new policies will answer before law and history.

“Those who help the illegal immigrants, hate Italians,” Salvini said, blasting his opponents on Facebook and Twitter.

The minister from the conservative Lega Nord Party promised that the rebelling city heads will “answer before law and history.” And it's no idle threat, as the former mayor of the Calabrian town of Riace is currently under house arrest on charges of aiding and abetting illegal immigration.

“Certain mayors look back fondly on the good old times of immigration, but for them the party is over!” Salvini said.

By “certain mayors” he meant the heads of Palermo, Florence and Naples, who he gave the choice of resigning from their posts.

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The three mayors insisted that some parts of Salvini's security decree aimed at curbing illegal migration to the country were unconstitutional and that they would refuse to follow them.

According to the new decree, migrants can no longer apply for full residency after a two-year asylum stay – but Palermo mayor Leoluca Orlando wants his city to continue this practice. Denying migrants access to health care and other essential municipal services would have an opposite effect and put them on the path of crime instead, he argued in the interview to the newspaper La Repubblica.

His resistance to the decree was “not an act of civil disobedience or conscientious objection, but the simple application of the constitutional rights that are guaranteed to all those, who live in our country,” Orlando said.

He also announced plans to take the anti-migrant rules to the Constitutional Court for the judges to rule on how they comply with Italy's principal law.

The mayor of Palermo was backed by his counterpart from Florence, Dario Nardella, who insisted that his city wouldn't cave in to the law that “expels asylum-seekers and, without repatriating them, throws them out onto the street.”

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Naples Mayor Luigi de Magistris said on Thursday that he was going to open the city's port to Sea Watch, a NGO ship that had been involved in rescuing migrants trying to cross the into Italy on rafts and rickety boats. The vessel has been stuck in the stormy Mediterranean for more than two weeks now, with 32 asylum-seekers onboard.

“I hope this boat comes to Naples because, despite what the government says, we will let it into the port,” de Magistris said, adding that he “will be first to lead the rescue effort.”

After #NewYear was cancelled for us due to bad weather, the wind and waves allowed us a short break. We tried to make it comfortable for everyone and hosted a movie night in the jam-packed recovery area. But break's over now: The storm is returning – we still need a #PortofSafetypic.twitter.com/XfraJtCCoN — Sea-Watch International (@seawatch_intl) January 2, 2019

Following his comments, Salvini reiterated that that all the ports in Italy were closed to migrant-rescuing ships.

Salvini’s fellow deputy PM and leader of the Five Star Movement, Luigi Di Maio, dismissed the rebellion of the mayors as “electioneering” and an attempt to achieve publicity by exploiting the migrant issue.

Salvini got his post after the euroskeptic coalition government came to power last year, with the migrant issue playing a key role in the success of Lega Nord and Five Star Movement at the polls. The new government pledged to deport 500,000 migrants that were in the country. Italy has become one of the prime destinations for asylum-seekers from Middle East and North Africa after the Arab Spring shattered many countries in the region.

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