Westbrook police arrested a 22-year-old man in connection with a February robbery after a search Friday on Central Street.
Police charged Christian Sawyer of Westbrook with robbery and aggravated assault. He was held in the Cumberland County Jail in Portland on $5,000 bail in connection with the Feb. 13 armed robbery on Ash Street.
A man told police he was threatened with a firearm and pistol-whipped after giving a ride to three people.
Police previously arrested Nadira Thomas, 21, of Westbrook and a second person, a juvenile whose name has not been released.
Both also were charged with robbery and aggravated assault.
Sawyer remained at large until he was arrested Friday.