On Sunday night, police responded to reports of a backpack with suspicious wires and a pipe found in a rubbish bin near a New Jersey train station and a pub. One of five suspicious devices in the backpack exploded as the FBI attempted to disarm it with a robot.
Federal authorities have reportedly detained five people with possible links to a bombing in the Chelsea district of Manhattan, New York, injuring 29 people, one seriously, on Saturday night.
The BBC reports that all 29 injured victims had been discharged from the hospital.
No evidence has yet emerged tying the devices to known extremist groups.
The country was shaken further by a stabbing attack at a Minnesota shopping mall that wounded nine and was claimed by Isil. Authorities didn’t identify the attacker, but the Star Tribune of Minneapolis said the man’s father identified him as Somali-born Dahir A Adan, 22.
Thousands of people were milling around one of Manhattan’s most fashionable areas when the blast ripped through the area shortly after 8.30pm local time.
It is understood to have originated from a device placed in a pressure cooker outside the Associated Blind Housing facility at 135 West 23rd Street. A second device was found four blocks away on West 27th Street.