Highway 92 is closed near Crystal Springs Reservoir because of a head-on crash on Wednesday morning, San Mateo County officials said.
County officials issued an alert at 7:18 a.m. about the crash on Highway 92 just east of Highway 35, also known as Skyline Boulevard.
County officials advised drivers traveling to or from the Half Moon Bay area on Highway 92 to use alternate routes until further notice.
No other details about the crash were immediately available.
