One of three Brooklyn men charged Wednesday with planning to fight for the Islamic State in Syria allegedly offered to kill President Obama and plant a bomb at Coney Island if the terror group ordered him to do so, the Justice Department said.

Police arrested Akhror Saidakhmetov, 19, a citizen of Kazakhstan and resident of Brooklyn, at John F. Kennedy Airport on Wednesday as he attempted to board a flight to Istanbul. He was en route to Syria where he planned to fight for the Islamic State, also known as ISIS or ISIL, according to a criminal complaint unsealed in federal court in Brooklyn.

The complaint also charges Abdurasul Hasanovich Juraboev, 24, and Abror Habibov, 30, both citizens of Uzbekistan living in Brooklyn. U.S. Magistrate Judge Lois Bloom ordered Juraboev and Saidakhmetov held without bail. Habibov, who appeared Wednesday in a Jacksonville court, was also held without bail.