New York police said that they're looking for 28 years old Ahmad Khan Rahami in connection with the Chelsea bombing over the weekend.

Also on Monday morning, New York Gov. Andrew Cuomo said that the bombs found over the weekend have similarities, suggesting "there might have been a common linkage."

Cuomo said that the investigation has been ongoing, and he "wouldn't be surprised if it zeroes in on a particular individual, today even," and he "wouldn't be surprised if we found a foreign connection to the act."

Law enforcement officials told CNN on Monday that the intense investigation into the weekend bomb blasts in New York and New Jersey has been leading authorities to signs of a possible terror cell in those two states.

The ongoing investigation, includes two bombs in New York City and devices in two cities in New Jersey. It has given authorities the leads on specific people who are urgently being sought.

Also on Monday morning, a federal law enforcement official said that BBs and ball bearings were among the pieces of metal that appeared to be packed into both pressure cooker bombs in New York.

One of those devices exploded on 23rd Street, but it was partly under a metal trash container may have diminished the force of the blast.

According to the FBI and the city's mayor the latest developments came shortly after a backpack containing multiple bombs was found on  Sunday night near an Elizabeth, New Jersey, train station.

By Prakriti Neogi