Several people have been wounded in an explosion in Manhattan, authorities said.
Fire trucks and ambulances converged on the scene after what witnesses described as a "deafening" blast in the Chelsea district of Manhattan around 9.00 p.m. on Sunday, BBC reported.
FBI and Homeland Security officials were at the scene, a local official told the US media.
The explosion comes just hours after a pipe bomb exploded in a New Jersey town, shortly before thousands of runners were to participate in a charity race nearby.
No injuries were reported in the New Jersey blast.
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