Three teen-agers were arrested and charged by state police with stealing property valued at more than $1,200 from five vehicles in an Eldersburg industrial park early Friday.

Tfc. Craig Williams of the Westminster barracks said he was on routine patrol about 12:25 a.m. Friday when he saw a black Ford Escort being driven out of the Carroll Insulation parking lot without headlights burning. It was driven to nearby Patton Construction Co. on Venture Way, he said.

When the trooper stopped the vehicle, he saw a stereo system partially hidden under the front passenger seat. A car stereo harness and lacrosse equipment were also found in the car.

Trooper Williams and two other troopers searched parking lots in the industrial park and found five vehicles with their windows broken. Two were missing stereos.

Brian Keith Copenhaver, 18, of the 6100 block of Timdan Court in Sykesville, and two juveniles were arrested and charged with theft, destruction of property, tampering with a motor vehicle and conspiracy.

Mr. Copenhaver was released on $1,000 unsecured bond and the juveniles were released into the custody of their parents pending juvenile court proceedings, police said.