Lexington police on Saturday arrested Arnold Perkins, 52, of Lexington, accusing him of robbing the Subway at 115 North Locust Hill Drive at 2 p.m. Saturday, Lt. Dean Marcum said.

Perkins, charged with one count of first-degree robbery, was being held in the Fayette County jail on Saturday night.

The robber of the Subway showed a clerk a knife and demanded money, then fled with "more than a couple hundred dollars" from the store's cash register, Marcum said.

The clerk suffered a slight injury to her arm from the robber twisting it, Marcum said.

Police got a description of the robber and his vehicle. Minutes later, an officer on his way to another call saw the vehicle at Liberty and New Circle roads and stopped it; Perkins was driving, Marcum said. The money was recovered, he said.

Marcum said Perkins also has been charged with robbing the Liquor Barn on Richmond Road on Thanksgiving Day.