Bombing suspect Ahmad Khan Rahimi appeared in court in New York on Thursday and denied setting off an explosive device on a street in the city.
Thirty people were injured in the blast in September in the Chelsea neighbourhood.
Rahimi, an Afghan-born US citizen, suffered serious injuries in a shootout when police captured him two days later when he was discovered sleeping in the doorway of a bar in Linden, New Jersey.
Prosecutors say he left other devices including a pipe bomb that went off along the course of a charity road race in New Jersey, although no one was injured there.
Chelsea bomb suspect pleads not guilty https://t.co/re3TznD8CK 🔓— Wall Street Journal (@WSJ) 18 novembre 2016
Wearing a dark blue jump suit, Rahimi, 28, shuffled slowly into federal court in Manhattan and had several coughing fits during the brief hearing.
He spoke only once, when US District Judge Richard Berman asked him to confirm that he intended to plead not guilty to an eight-count indictment filed on Wednesday.
“Yes, sir,” Rahimi said.
Federal prosecutors also say Rahimi left another bomb in Chelsea that did not go off and several explosive devices in a bag at a train station in Elizabeth, New Jersey.