Federal prosecutors have charged two men with conspiracy to use a weapon of mass destruction in connection with a homemade bomb attack planned near Gracie Mansion, the official residence of New York City Mayor Zohran Mamdani.

According to the indictment, the suspects allegedly intended to kill up to 60 people in the planned attack. The charges represent one of the most serious domestic terrorism cases to emerge in New York City in recent years.

The conspiracy charge carries severe federal penalties and indicates prosecutors believe the defendants took substantial steps toward carrying out their alleged plan. Weapons of mass destruction charges under federal law encompass explosives designed to cause mass casualties.

Gracie Mansion, located on the Upper East Side of Manhattan, serves as both the mayor's official residence and a venue for city functions. The historic building sits in Carl Schurz Park overlooking the East River.

Federal authorities have not released details about how the alleged plot was discovered or whether the suspects had access to explosive materials. The investigation appears to be ongoing, with prosecutors likely to present additional evidence as the case proceeds through the federal court system.