As the island tries to rebuild, city officials are expecting an influx of Puerto Ricans to relocate to the city.

The city is already sending supplies and personnel, but Puerto Ricans with family ties to New York may be trying to get off the island.

Mayor Bill de Blasio said there is no estimate of how many Puerto Ricans might come in the weeks ahead, as airline service has just returned to San Juan and many are still unable to travel.

"There's no way yet to know what that number may be, but I think it's absolutely right to assume that there will be a substantial number of Puerto Rican families coming here because they have family ties here and places, hopefully, they can stay," de Blasio said at a press conference. "I would be surprised if that was less than, you know, the thousands."

The mayor added that public schools throughout the city would be ready to accept any students that come from Puerto Rico once they arrive, and help people with medical issues that need to be treated.