Republican House has put aside $7 million for New York security for Trump

To which Phillips calmly responded: 'That's not very nice, Dan. But about that bill … work on it with us?'

Dan Scavino Jr., Trump's social media director, call Phillips an 'embarrassment' to the mayor's office and the NYPD

New York Mayor's aide Eric Phillips responded they would 'send you the bill'

Trump's incoming press secretary, Sean Spicer, tweeted his thanks to the NYPD

The evacuation of Trump Tower over a false bomb scare has triggered a vicious Twitter spat between the aides of the president-elect and New York's mayor.

Police had shut down the streets and cleared the building on Tuesday afternoon after a suspicious package was found in the lobby. The bomb squad later determined it was a backpack full of children's toys.

Donald Trump's incoming press secretary, Sean Spicer, tweeted his thanks to the New York City Police Department after returning to work at the Fifth Avenue, Manhattan tower following the evacuation.

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The evacuation of Trump Tower over a false bomb scare has triggered a vicious Twitter spat between the aides of the president-elect and New York's mayor

'No problem,' Eric Phillips, New York Mayor Bill de Blasio's press secretary, fired back in response.

'We'll send you the bill.'

Dan Scavino Jr., Trump's social media director and the senior adviser to his transition, immediately took the bait, calling Phillips an 'embarrassment' to the mayor's office and the NYPD.

'That's not very nice, Dan,' Phillips tweeted, along with a link to a story about how the Republicans have set aside $7 million to help New York pay for security for president-elect Trump.

'But about that bill … work on it with us?'

Trump Tower in New York was evacuated on Tuesday as terrified people were seen fleeing the building over a suspicious package

The Manhattan tower, the home of President-Elect Trump and his family, was evacuated around 5pm on December 27

W hile the president-elect will relocate to the White House in January after his inauguration, the new First Lady and Barron will stay in their midtown Manhattan apartment until Trump's youngest son finished this year of school.

But Trump has made it clear he plans to be in New York City regularly and will make even more frequent visits while Melania and Barron are there.

The Tower has also been home to his transition team as he prepares for the move to the White House.

While the president-elect will be protected by Secret Service, the local police are always called on to help assist them. Blasio said the city will need help with the cost of overtime officers will be working to keep the first family safe.

NYPD's primary responsibility will be controlling the movement of the general public, according to CNN Money.

Presidents are required to have local police protecting them when they return to their homes.

It cost taxpayers $2 million a year to station U.S. Coast Guard boats off the coast of George H. W. Bush's Maine estate during his presidency. While the Secret Service paid Vice President Joe Biden $2,200-a-month to rent the neighboring cottage to his Wilmington, Delaware home.

Two fire fighters stand outside the luxury high rise after reports of a suspicious package

Police crowded onto the street outside of Trump Tower, on Fifth Avenue, Manhattan

But because Trump lives in the most densely populated neighborhood in the biggest city in the U.S., this is a massive task.

'We have never had a situation where a POTUS would be here on such a regular basis.

'The NYPD is up to the challenge and the city of New York is up to the challenge, I have no doubt about that,' Mayor Bill de Blasio said.

De Blasio had previoulsy argued that New York should get $35 million for protecting the Midtown office tower where Trump is based. The building has already been subject to a number of security alerts this past year, including the suspicious package, and white powder being sent to the Trump mailroom.

The House has made $7 million available for security measures.

'I'm disappointed. I think they should have done better by New York City,' de Blasio said earlier this month. 'But this ain't over.'

Those security measures include a no-fly zone over the 58-story structure, barricades around the building and both police and the Secret Service have been on guard.

The Secret Service was also in negotiations to take over two floors of the Tower which could cost more than $3 million a year, according to a report.

Trump, who spent the holiday at his Mar-a-Lago estate in Florida, was not at home at the time of the bomb scare.

When he is back in his hometown of New York, the security to protect him and his family runs to more than $1 million a day, according to officials.