SUMMIT TOWNSHIP — Police are investigating after a gas generator was stolen from the set of a major motion picture being shot at Conneaut Lake Park recently.

Pennsylvania State Police reported someone entered the park sometime between 5 p.m. Friday and 6 a.m. Saturday and stole the generator, which was being used by the production group for “The Road.”

A few scenes for the cinematic adaptation of Cormac McCarthy’s Pulitzer Prize-winning novel were shot Friday and Saturday at the park. Following a nearly two-week stint in Erie County (chiefly at Presque Isle State Park), the production group of about 100 briefly set up shop at the 116-year-old park, using the midway, the Beach Club, the boardwalk and behind Hotel Conneaut.

Park officials said a few onlookers were seen outside the closed set and an early incident of a boat traveling up and down the lake had to be addressed, but security was in place and there were no other incidents apparent during the hours of the filming.

A father-and-son tale of survival in a post-apocalyptic world, the film — a 2929 Production directed by John Hillcoat — features stars including Viggo Mortensen (“Eastern Promises,” the “Lord of the Rings” trilogy), Kodi Smit-McPhee, Charlize Theron, Robert Duvall and Guy Pearce.

Anyone with information about the theft should call state police at 332-6911.