Five suspicious devices have been found in a backpack near a train station in New Jersey, with one exploding during attempts to disarm it.

Following the discovery, the FBI have carried out a search warrant at a premises in the city of Elizabeth.

Pictures have emerged of a raid on a fried chicken outlet close to where the devices were found late on Sunday.

Earlier, footage was released of the moment the device disappeared in a fireball, as FBI bomb squad robots moved in.

The blast came as five men were detained and questioned over a bomb attack in New York on Saturday night, which left 29 injured.


New Video of injured New York bomb victims

New York governor Andrew Cuomo said the investigation was moving quickly and it may "soon be targeting a person of interest".

It has been reported the bomb that detonated in Manhattan, and another unexploded device found nearby, were both shrapnel-filled pressure cookers, similar to those used in the attack on the Boston Marathon in 2013.

:: Manhattan bomb: What clues are there for investigators?

The devices in Elizabeth, less than 15 miles southwest of Manhattan, were found by two men in a backpack left in a bin.

'Wires and a pipe' in backpack

The city's mayor, Christian Bollwage, told Sky News the pair had alerted authorities after they "saw wires and a pipe".

Up to five devices were found in the bag and when the robot cut a wire on one of them to try and disable it, it exploded.

Mr Bollange said: "I can imagine that if all five of them went off at the same time, that the loss of life could have been enormous if there was an event going on."

Hundreds of police deployed after NY blast

US Attacks Timeline

:: Saturday morning - pipe bomb explodes on the route of a New Jersey charity run in aid of US marines and sailors.

:: A man stabs eight people at a shopping centre in Minnesota before being shot dead.

:: An explosion in Manhattan injures 29 people on Saturday night. Police find a second unexploded device nearby.

:: Sunday night - a backpack containing five devices is found in a bin near a train station in the New Jersey city of Elizabeth.

:: Monday morning - One of the devices explodes as bomb squad robots attempted to disable it in the early hours.

What do we know about the explosives?

The discovery came after a small pipe bomb exploded in the New Jersey town of Seaside Park on Saturday morning, shortly before a charity run for US marines and sailors. No one was injured.

Later that day a knife-wielding man injured eight people at a shopping mall in Minnesota, before he was shot and killed by an off-duty police officer.

Islamic State has claimed he was a "soldier" of the terror group.

As part of the inquiry into Saturday's bombing in Manhattan, the FBI pulled over a car described by officials as "a vehicle of interest in the investigation" in Brooklyn on Sunday night.

Robot probes suspect device near NY blast

Its five occupants are being questioned at an FBI building in Lower Manhattan.

However, no-one has been charged and the investigation is continuing.

Forensics experts are continuing to comb through evidence from the Manhattan bombing, which was described by witnesses as a deafening blast that shattered windows and hit bystanders with shrapnel.

All of those who were injured by the explosion had been released from hospital by Sunday afternoon.

Meanwhile, CNN has reported surveillance videos showed the same man close to the site of the first explosion and the location where the unexploded device was found.

The discovery of the latest device comes as nearly a thousand extra police are deployed on New York's streets as world leaders arrive in the city for a UN summit on the refugee crisis.