An extensive search was underway Sunday in Pleasanton Ridge Regional Park, where authorities are looking for a man who didn't return from a run Saturday in the hills.
Philip Kreycik, 37, parked his car near the Moller Ranch staging area about 11 a.m. and told his wife he was going for an hourlong run in the East Bay Regional Park, Pleasanton police said.
Kreycik's wife reported him missing at 2 p.m. Saturday. An avid runner with no known health conditions, Kreycik is described as White, with a thin build and brown hair and eyes. He is presumed to be wearing running attire.
“His phone was left in his car with his ID, which is apparently normal for him. He's a pretty active runner and he's all about the speed and he doesn't like to carry a lot of things," said Lt. Chris Niederhaus with Pleasanton police.
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One of the first concerns for police was the triple digit temperatures on Saturday. That’s when search teams were quickly called including scent hounds.
One of the dogs followed his scent from his vehicle to a trail. But no farther.
On Sunday night, there are search teams from Alameda, Contra Costa and Marin counties as well as volunteers who had just shown up to help.
“I saw a post, searching for a runner. So, I thought I would come and check it out because I run here pretty often,” said Pradeep Pise, a resident in the area.
Pleasanton police officers and personnel from East Bay Regional Park police, the Alameda County Sheriff's Department and the California Highway Patrol are using drones, fixed-wing aircraft, off-road vehicles, and search and rescue teams to locate Kreycik.
Someone living in the neighborhood who doesn't want to be named shared a video to NBC Bay Area Sunday.
The video showed drones that were also sent up Saturday night. The resident told NBC Bay area that search teams used them for several hours.
“I saw about four, three or four drones in the air. They were combing the mountains up on top. They were very loud and they were very bright,” he said.
According to Pleasanton police, by using aircraft like planes and drones, they have been able to map about half the trails in the massive park. Unfortunately, they still haven't been able to spot Kreycik.
Authorities have already assembled enough teams to continue the search all day Monday.
The park remains open for visitors, police said. Anybody with information about Kreycik's location is asked to contact the Pleasanton Police Department at (925) 931-5100.