New York and federal authorities are investigating two men arrested after improvised explosive devices were thrown near Gracie Mansion, an act NYPD Commissioner Jessica Tisch called "ISIS-inspired." The suspects, Amir Balat and Ibrahim Kayumi, will face federal prosecution in Manhattan, and a criminal complaint was expected to be released soon. Federal agents executed search warrants in Bucks County, Pennsylvania, and New Jersey; sources say the devices contained shrapnel and a chemical substance. Investigators reported alleged pro-ISIS statements by the suspects and are reviewing their travel histories.
Feds Probe 'ISIS-Inspired' Explosive Devices Thrown Near Gracie Mansion; Two Men To Face Federal Charges
Warrants served in New Jersey, Pennsylvania as feds look into possible NYC terrorism
New York Police Department Commissioner Jessica Tisch said Monday that investigators are treating the incident in which improvised explosive devices were thrown near Gracie Mansion as an "act of ISIS-inspired terrorism." The announcement came during a news briefing alongside New York City officials.
Suspects and Federal Prosecution
Authorities identified two suspects, Amir Balat and Ibrahim Kayumi, who were arrested on Saturday and will be prosecuted in federal court in Manhattan. Commissioner Tisch said a criminal complaint outlining charges and factual allegations was expected to be released later Monday.
Searches and Evidence
Federal agents executed search warrants at locations in Bucks County, Pennsylvania, and at a related address in New Jersey as part of the inquiry. Law enforcement sources told investigators that the devices thrown into the crowd were packed with nuts, bolts and screws and contained a chemical substance inside a taped canister fitted with a fuse. An additional suspicious device was also reported near Gracie Mansion over the weekend.
NYPD Bomb Squad officers search a car on March 8, 2026, in New York City.(Getty Images)
Terror Investigation and Statements
Federal sources said the discovery of confirmed improvised explosive devices prompted a formal terror investigation. Officials also reported that the two men allegedly made pro-ISIS statements while in custody. Investigators are reviewing the suspects' travel histories, including documented trips to Turkey and potentially other locations of interest to U.S. counterterrorism officials.
Limited Public Detail
Because the case is being handled as a federal prosecution, officials have declined to discuss many operational details while the investigation and evidence-gathering continue. Authorities said more information will be made public when the criminal complaint is filed and as the investigation develops.
Ongoing Coverage
This is an active, developing story. Updates will be provided as federal and local officials release additional information and as formal charges and court filings become public.
Help us improve.
