Another Explosion occurs at New Jersey train station...photo

An explosion has taken place at a New Jersey train station while authorities are at the scene investigating reports of a suspicious package.

The station, in Elizabeth, New Jersey, was evacuated alongside businesses in the surrounding area. One eyewitness described the blast as "thunderous", but there have been no injuries.

A bomb squad robot was at the scene when the blast took place, however authorities have confirmed that it was not a controlled explosion.

Chris Bollwage, the Mayor of Elizabeth, confirmed that the suspicious package contained "an explosive device" and "could have hurt a lot of people". The device is understood to have been found in a bin at the station.

The incident comes as FBI agents are questioning five people over the explosion that injured 29 people in New York at the weekend.