Security was increased Friday afternoon at New York’s major airports, Port Authority officials said, after a gunman killed five people at the Fort Lauderdale airport.

The Port Authority in a statement said the extra measures mirror ones used over the holidays.

A police officer at Long Island MacArthur Airport said security also had been increased there.

Nassau and Suffolk police said in statements they would add patrols around airports and transit hubs.

Nassau police said they “intensified patrols” in shopping malls, “public gatherings and near critical infrastructure.”

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The Port Authority’s steps include armored vehicles, K-9 teams to detect explosives, and strike teams equipped with tactical weapons who will conduct anti-terrorism patrols.

New York State Police sent extra officers to LaGuardia and Kennedy airports, said the Port Authority, which owns and runs the biggest airports in New York and New Jersey.

Passengers should expect additional random checks of bags at those airports, the agency added.

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Both Nassau and Suffolk police said they were working with federal and local authorities to assess any potential threats.