By Bay City News Service

At least 19 vehicles were damaged early Saturday morning allegedly by occupants in a truck who were spotted throwing rocks at the windows of parked cars in the Emerald Lake Hills area of San Mateo County, a sheriff's sergeant said.

The vandalism was first reported shortly before 3 a.m. when residents alerted 911 that they heard glass breaking, according to Sgt. Linda Gibbons of the San Mateo County Sheriff's Office.

Other witnesses reported seeing a truck with at least two juveniles inside throwing rocks at the windows of parked cars, Sgt. Gibbons said.

Deputies searched the area but were unable to locate the truck, described as either a white Toyota Tundra or a gray Ford F-150.

Streets affected by the vandalism include Sunset Way, Wilmington Way, California Way, Handley Trail, Paradise Way, Lakeview Way and Bayview Way, Sgt. Gibbons said.

Anyone who may have been a victim of this vandalism is asked to call the Sheriff's Office Communications Center at (650) 363-4911.

Anyone with information about the vandalism is asked to call the Sheriff's Office Detective Bureau at (650) 599-1536 or the anonymous witness line at (800) 547-2700.

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