Three motorcyclists had separate crashes within three hours Sunday along Angeles Crest Highway, according to sheriff's officials.
A rider slammed into the hillside, suffering significant injuries in the first crash on the Angeles Forest Highway, near the Upper Big Tujunga cutoff, about 10:15 a.m. Sunday, Sheriff's Reserve Chief Mike Leum told Patch.
Montrose SAR team members treated the victim and he was transported by Sheriff's Air 5 to a hospital, Leum said.
Another rider drove off the side of Angeles Crest Highway about 10:45 a.m. Sunday near Mile Marker 46.5, Leum said. He landed in heavy brush and suffered critical injuries. He was flown by a Los Angeles County Fire Department helicopter to a trauma center.
Soon after, another rider slid off his bike, leaving oil on the roadway, near Mile Marker 30, Leum said. He walked away with minor injuries, he said.
At 6:45 p.m. Sunday Montrose SAR was called to help Altadena and Sierra Madre search and rescue teams in finding missing Akiva Estersohn at the Chaney Trail area in Altadena, Sheriff's Lt. Marjory Jacobs of told Patch.
Patch contacted the California Highway Patrol, who is handling the investigation, but no names or current victim conditions were immediately available.
, injured, but not in serious condition, according to Jacobs. Search and rescue teams were helping him walk out on Sunday night, Jacobs said.
Estersohn was reported missing in Los Angeles. His family, knowing he was an avid hiker, asked police to search all the trail heads in the foothill areas to see if he might have gone hiking. His vehicle was found in the Chaney Trail area on Sunday.