"The disruptions could be horrible," the transportation sector source told Reuters.
The Islamic State militant group has called the parade an "excellent target."
New Yorkers’ measured reaction to the explosion in Chelsea could mean they have come to accept that such incidents a part of their daily lives.
Recent arrests are the first major prosecution to emerge from several overlapping state and federal corruption probes examining de Blasio's fundraising practices.
The iconic building will shine orange Wednesday night to honor Americans who have been killed by guns.
The Bronx Zoo’s Birdathon helps highlight the many animals that stop through New York City during migration season.
Families and survivors of gun violence marched across New York City’s Brooklyn Bridge to demand tighter firearms laws.
The Democratic front-runner sent a message of support to a transgender individual who was attacked on a New York City train.
Brooklyn, and more broadly New York City, is personal for both Democratic contenders.
Seven runners ran 211 laps indoors to complete an indoor marathon in New York City.