March 8 (UPI) -- The New York Police Department said two people were arrested in connection with a pair of "suspicious devices" ignited during an anti-Islam protest outside Gracie Mansion.
Police Commissioner Jessica Tisch said the devices appeared to be jars wrapped in black tape containing nuts, bolts and screws. Each device had a hobby fuse.
"We do not yet know whether the devices were functional improvised explosive devices or hoax devices, because we don't yet know if there was energetic material contained in them," NBC News quoted Tisch as telling reporters.
The FBI's New York field office is also investigating.
"During a rally earlier this afternoon, two suspicious items were recovered from the property of Gracie Mansion," the office said on social media. "The FBI New York's Joint Terrorism Task Force and the New York City Police Department quickly responded and are actively investigating this matter."
