Massachusetts police say a driver having a medical episode struck several cars and crashed through the wall of a day care center, pinning a toddler beneath the vehicle.

Billerica Deputy Police Chief Roy Frost says an SUV driven by a 38-year-old Billerica woman hit the cars, jumped a curb and struck a fence around 5:30 p.m. Thursday.

He says it then crashed into A Brighter Rainbow Learning Center, landing in the main child care area. Four children were inside and at least three others were in an outside play area.

A 2-year-old boy was taken to the hospital. Frost says the child's injuries aren't life threatening. Witnesses say he had a gash on his head. Two other children were treated at the scene.

The driver also was taken to the hospital with non-life-threatening injuries.

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