An armed robbery suspect is in custody tonight after a high-speed chase through the Polaris area in Delaware County, down into the middle of Franklin County and back up north to Worthington. The suspect, whose name was not immediately available, was clocked going up to 130 mph in a sedan, according to police radio traffic. He was arrested at a dead end near Evening Street and Pinney Drive in Worthington. No one was believed to have been hurt. At least 20 police vehicles were on the scene, and a police helicopter was involved in the chase. The suspect is believed to have robbed a retail store west of the Polaris area. The Delaware County sheriff, Columbus police and Worthington police were involved in the chase, which included stretches on I-71 south, Rt. 315 north and parts of I-270 and Rt. 161.