New York City Police Commissioner Jessica Tisch (C) speaks alongside New York City Mayor Zohran Mamdani (L) the official residence of New York Mayor Zohran Mamdani, in New York City, New York, US, on March 9, 2026. LEONARDO MUNOZ / AFP

A weekend incident in New York involving an improvised explosive device thrown near an anti-Islam protest is being investigated as an Islamic State (IS) group-inspired act of "terrorism," police said on Monday, March 9.

Two men allegedly involved in throwing a nail bomb packed with TATP explosives during the protest near the New York mayor's residence were arrested and will face a complaint in criminal court later.

"I can confirm this morning that this is being investigated as an act of ISIS inspired terrorism," NYPD Commissioner Jessica Tisch said, using another name for the Islamic State group. She said it was not thought to be linked to the ongoing conflict in Iran. No one was hurt during the incident.

On Sunday, the police bomb squad inspected a car connected to the men near the scene of the incident. Tisch said a suspicious device found in the vehicle tested negative for explosives.