NEW YORK (AP) - Blasting at the construction site for a New York City subway line has shattered windows and sent smoke billowing up to the street.

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Metropolitan Transportation Authority spokeswoman Marjorie Anders says contractors building a tunnel for the Second Avenue subway used too much explosive. She says no one was injured.

Anders says the blast happened at about 1 p.m. Tuesday at East 72nd Street and Second Avenue. Fire trucks are at the scene.

According to the New York Times, windows were broken at a nearby art gallery and the explosion was felt at street level.

Blasting was temporarily halted after the explosion.