Ashley Southall

NEW YORK -- A carriage horse that collapsed a week ago in Central Park died after eating a commonplace but poisonous plant, according to preliminary findings released on Tuesday.

Mayor Zohran Mamdani paid tribute to the team at City Hall after their long-awaited parade up Broadway. “For as long as we live, we will remember this feeling of a city together, a city alive, a city overcome by happiness,” he said.

The complex, which was once housed offices for the pharmaceutical company Pfizer, is being converted to residences. Officials inspecting it found support columns were buckling, and upper floors were sagging.

A high-profile housing project near Grand Central Terminal was at risk of collapse Tuesday, prompting an emergency response during the morning rush in midtown Manhattan, the authorities said.

City officials set up a multiblock “frozen zone” around the building, a construction site near Grand Central Terminal. Beams were being brought in to stabilize the structure, the buildings commissioner said.

Offices and hotels around East 42nd Street were evacuated after structural damage affected an office conversion project. Traffic was halted in the area. No injuries were reported.

NEW YORK — Twenty-one stories above a midtown Manhattan street early Tuesday morning, construction workers were busy converting an office building into a residential complex when it began falling apart.

Federal authorities searched the home of Anthony Miranda, the former sheriff, and sought records about the tobacco company, Reynolds American.

The building, 26 Federal Plaza, houses the New York field office of Immigration and Customs Enforcement.

NEW YORK — An Army veteran set a fire, ignited fireworks and waved an air rifle at passersby outside a building in lower Manhattan Monday in an attack targeting federal