SARATOGA — A Los Gatos dog walker who gained Internet fame for portraits of perfectly posed canines has been arrested on suspicion of running over two Labradors last week and fleeing the scene, authorities said.

The Santa Clara County Sheriff’s Office said Christopher James Iles, 44, of Los Gatos, was driving a Ford pickup truck that hit the animals as they were being walked by their owner on Dagmar Drive at Holiday Court around 8:30 a.m. Wednesday.

The Labradors, named Sadie and Chudley, were pulled under the truck, and their owner, a Saratoga woman, was knocked to the ground as a result, the Sheriff’s Office said.

Both animals had to be euthanized because of the severity of their injuries.

Investigators received a tip about a potential location of the truck and its owner, which led them to a residence in Los Gatos. They spotted the vehicle Saturday morning, pulled it over and arrested Iles, the Sheriff’s Office said. He is currently out of custody.

Iles has been featured in articles on several websites, most of which are related to dog-walking, but also had a photo array that appeared on BuzzFeed of leashed dogs in proper poses looking at the camera.

Social-media pages of Iles’ dog-walking business — he also describes himself as specializing in “dog socialization” — have been taken offline.

Attempts to reach Iles on Sunday were unsuccessful.

Anyone with information about the Friday hit-and-run can contact 408-299-2311.

Contact Robert Salonga at 408-920-5002. Follow him at Twitter.com/robertsalonga.