US officials said Monday they are seeking no further suspects in connection with the weekend bombings in New York and New Jersey, and have no reason to suspect a terror cell is active in the region.

"I have no indication there is a cell operating in the area or in the city," Bill Sweeney, the assistant director in charge of the FBI's New York office, told a news conference.

"There is no other individual we're looking for at this point in time," added mayor Bill de Blasio.