Nearly six months after a Miller Place woman was killed in a hit-and-run crash on North Country Road, police have made an arrest.

Christopher Campbell, 35, of Sound Beach, was arrested on Tuesday after a grand jury indicted him for leaving the scene of a fatal accident, following an investigation by the Suffolk County Police Department’s Vehicular Crime Unit, county District Attorney Tom Spota said.

Campbell allegedly drove the vehicle that struck 40-year-old Tracy Mangino, who was walking on North Country Road, east of Block Island Drive, on Oct. 18. Mangino died of her injuries at John T. Mather Memorial Hospital in Port Jefferson.

Campbell pleaded not guilty to the charge in Suffolk County District Court in Central Islip, Spota said. Judge Fernando Camacho set Campbell’s bail at $50,000 cash, $100,000 bond.

The October crash isn’t the first time Campbell has been accused of leaving the scene. In June 2012, he was arrested and charged with drunk driving and leaving the scene of an accident after he sideswiped a parked car on East Main Street in Port Jefferson. According to Spota’s office, Campbell allegedly tried to flee the scene on foot, but was apprehended by a village constable and Suffolk police officer. The charges are still pending.

Robert Macedonio, Campbell’s Central Islip-based attorney, was not immediately available for comment regarding either case.

At the time of the October crash, police described the vehicle that hit Mangino as a box-type truck, traveling eastbound on North Country Road. Detective Sgt. John Sumwalt, of the Vehicular Crime Unit, said in an October interview that the vehicle was light-colored and that a passing motorist notified police of the incident. He added that detectives were reviewing surveillance footage from the area. And on Tuesday, Spota revealed the strategy was successful.

“Vehicular Crime Unit detectives canvassed the neighborhood and were successful in gathering evidence, including video footage of the driver’s truck leaving the scene,” he said.