The five were detained during a traffic stop on the Verrazano-Narrows Bridge.

By Alexia Fernandez
Updated September 19, 2016 12:10 AM
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Andres Kudacki/AP

Five people were detained in possible connection with Saturday’s explosion in the Chelsea neighborhood of Manhattan, according to ABC News, the New York Times and PIX 11.

The five were detained during a traffic stop conducted by the Federal Bureau of Investigation and the New York Police Department on the Verrazano-Narrows Bridge.

The bridge connects Brooklyn and Staten Island.

On Sunday night, the FBI made it clear that no arrests had been made yet.

“We did a traffic stop of a vehicle of interest in the [Chelsea] investigation,” the FBI tweeted. “No one has been charged with any crime. The investigation is continuing.”

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A federal official confirmed to PEOPLE that a second device was found but that it was still being studied.

Law enforcement officials told ABC News they are investigating the possibility that two explosions, the one in New York and one in New Jersey, were linked.

The investigations remain “separate,” FBI officials said.

“Just because you have one thing in common, doesn’t mean the devices are similar,” one official said.

New York City Mayor Bill de Blasio held a news conference on Saturday, saying the possibility of a connection will “continue to be considered” and that officials were not “taking any options off the table.”

“We know there was a bombing. We will be very careful and patient to get to the full truth here,” de Blasio said. “Was it a political motivation, a personal motivation? What was it? We do not know that yet.”

The explosion happened on 23rd Street between Sixth and Seventh Avenues in Chelsea – a popular nightlife area that is usually bustling on Saturday night. Twenty-nine people were injured.