(KRON) — A lockdown for Sonoma Valley High School and several other area schools has been lifted after an unspecified threat was deemed unfounded, the Sonoma County Sheriff’s Office said. Earlier, several schools were under lockdown, including Sonoma Valley High and Creekside High School, which share the same campus.

Adele Harrison Middle School and Prestwood Elementary were also on lockdown due to their proximity to Sonoma Valley HS, authorities said. There is no threat to these two schools, according to the sheriff’s office, but they are on lockdown “out of an abundance of caution.”

Authorities advised people to avoid the area of all four schools as the lockdown continues.

Sonoma Valley and Creekside high schools are located on Highway 12 south of MacArthur Street.

Video from the scene showed numerous police vehicles outside of the schools with parents and students gathered in the vicinity.

As of 3 p.m., students at some of the schools were being allowed to leave campus. Officers were monitoring the situation as students reunited with parents.

This is a developing story. Check back for updates.