New York officials are looking for a naturalised United States citizen who was born in Afghanistan for questioning over Saturday’s blast in the Chelsea area in which 29 people were injured.
The BBC reports that the suspect has been named as Ahmad Khan Rahami, aged 28.
Early on Monday, a backpack containing up to five devices exploded in Elizabeth, New Jersey, when a bomb disposal robot tried to deactivate it.
The suspect’s last known address was in Elizabeth.
FBI officials were searching a residence in the New Jersey city on Monday.
Investigators have warned that the suspect should be considered “armed and dangerous.”
“Anyone who sees this individual or knows anything about him or his whereabouts needs to call it in right away,” New York Mayor, Bill de Blasio, said on CNN.
Both the bomb that went off in New York on Saturday and an unexploded device found nearby were shrapnel-filled pressure cookers, according to U.S media.
New York Governor, Andrew Cuomo, said on Monday that there might be a foreign connection to the Manhattan attack.
Officials had said over the weekend there were no confirmed links to international terrorist groups.