New York City Mayor Bill de Blasio said Monday the weekend bombing in Chelsea was an act of terror, but the FBI said that there is no reason to believe a terror cell "is operating here."
"We have every reason to believe this was an act of terror," de Blasio said at a news conference.
On Saturday, a bomb exploded in the New Jersey shore town on Seaside Park, forcing the cancellation of a large charity race. Later that day, a bombing in New York's Chelsea neighborhood injured 29 people. Officers found a possible secondary device nearby. On Sunday, five additional explosive devices were found near a train station in Elizabeth, New Jersey.