A 79-year-old man was critically injured Sunday evening after he and his dog were struck by a Nissan Rogue near 280 Wood St. in Hopkinton, police said. The crash happened shortly after 6 p.m. The man was taken to UMass Memorial Medical Center, where he remained in critical condition. A neighbor brought the dog to Tufts Cummings School of Veterinary Medicine; its condition was not reported. The driver, a 29-year-old woman from Northborough, remained at the scene and is cooperating with investigators, police said. No charges had been filed as of Sunday night, and the investigation was ongoing. Wood Street was closed between Fruit and Winter streets while police investigated. Authorities asked anyone who witnessed the crash or has dashcam or doorbell video of the SUV to contact Hopkinton police.