Federal authorities on Sunday detained five people with possible links to the New York bombing, local media reported, citing unnamed law enforcement sources.

The FBI’s New York branch tweeted that no one had been charged in connection with the blast in the city’s Chelsea neighbourhood, which injured 29 people — but did not make mention of any arrests.

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

New York media said the vehicle’s five passengers were in custody for questioning.

The vehicle was stopped around 9:30 pm heading east on the Belt Parkway from the Verrazano-Narrows Bridge, which connects the New York city boroughs Brooklyn and Staten Island.

The New York Daily News reported that weapons were found in the car.

The newspaper also said that one person of interest had been identified via surveillance footage, but it was not clear if he was one of the five taken into custody.