Debris fell from an overpass and crashed through a woman's windshield while she was driving in Boston Tuesday.

Nancy Shapiro, a resident of the city's Jamaica Plain neighborhood, was driving to a symphony when the incident occurred.

She was in the underpass on Huntington Avenue near Massachusetts Avenue when a 2X4 crashed into her car.

Authorities believe the truck in front of Shapiro somehow loosened the debris from the overpass.

Shapiro was not injured.