NYPD Investigates 'Suspicious Device' Near Gracie Mansion After Alleged ISIS-Inspired Plot

The incident comes just days after two men were arrested for attempting to detonate explosives outside the mayoral residence.

Published on Mar. 10, 2026

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The New York Police Department evacuated a Manhattan park near Gracie Mansion on Tuesday due to a suspicious device, just days after two men were arrested for allegedly attempting to detonate improvised explosive devices (IEDs) at the mayoral mansion during protests. The FBI said they recovered three explosive devices from a storage facility in Pennsylvania connected to the incident and conducted controlled detonations.

Why it matters

The incident highlights ongoing security concerns around the mayor's residence and the potential threat of homegrown, ISIS-inspired terrorism in New York City. Authorities are investigating whether the suspicious device is connected to the previous alleged plot.

The details

Police evacuated East End Avenue between East 85th and East 87th Streets, as well as East 86th Street between York Avenue and East End Avenue, due to the suspicious device. It was not immediately clear if the device was an explosive, a hoax, or something else. The two men arrested on Saturday, Ibrahim Kayumi and Emir Balat, are accused of attempting to provide material support to a terrorist organization and using a weapon of mass destruction.

  • On Saturday, Kayumi and Balat were arrested for allegedly attempting to detonate IEDs at Gracie Mansion.
  • On Monday, the FBI said they recovered three explosive devices from a storage facility in Pennsylvania connected to the incident and conducted controlled detonations.
  • On Tuesday, police evacuated the area near Gracie Mansion due to a suspicious device.

The players

Zohran Mamdani

The mayor of New York City whose residence, Gracie Mansion, was the alleged target of the ISIS-inspired terrorism plot.

Ibrahim Kayumi

A 19-year-old man arrested and charged with attempting to provide material support to a terrorist organization and using a weapon of mass destruction in connection with the alleged plot to detonate explosives outside Gracie Mansion.

Emir Balat

An 18-year-old man arrested and charged with attempting to provide material support to a terrorist organization and using a weapon of mass destruction in connection with the alleged plot to detonate explosives outside Gracie Mansion.

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What they’re saying

“Yesterday's search of the storage unit believed to be connected the Gracie Mansion incident revealed explosive residue. FBI Special Agent Bomb Technicians and the local bomb squads conducted a controlled detonation to ensure the safety of law enforcement and others in the area.”

— FBI New York (X)

What’s next

Authorities are investigating whether the suspicious device found near Gracie Mansion is connected to the previous alleged plot. Kayumi and Balat are awaiting arraignment on the charges related to the attempted attack.

The takeaway

This incident highlights the ongoing security challenges around protecting high-profile government officials and the persistent threat of homegrown, ISIS-inspired terrorism in major U.S. cities like New York. It underscores the need for vigilance and close coordination between law enforcement agencies to prevent such attacks.