The accident is on Norden Place near Strawberry Hill Avenue and Greenfield Road, police said. The accident occurred just before 10 a.m. Friday, police said.
The accident involves a tractor-trailer caught in the power lines. The Norwalk Police Department and Norwalk Fire Department are on the scene. A photo from the police department shows the tractor-trailer tipped and on only two sets of wheels, leaning precariously toward parked cars and held only by the power lines.
Motorists are urged to avoid the area.
Connecticut Light & Power reports that 18 customers in Norwalk were without power after the accident.
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