Two high schools in Santa Clara County evacuated after bomb threats

Two high school campuses in Santa Clara County were evacuated Tuesday afternoon after separate bomb threats were called in, authorities said.

The first call came in to St. Francis High School in Mountain View around 12:30 p.m., the Mountain View Police Department reported on Twitter.

Then at 1:54 p.m. Presentation High School in San Jose received a bomb threat that was also phoned in, according to the San Jose Police Department.

Students and staff at both campuses were evacuated.

Police said the threats were phoned in from the same phone number, according to the East Bay Times. 

An extensive search was conducted at both high schools. 

Mountain View police by 6 p.m. had deemed the bomb threat there to be not credible. 

"We are not releasing details on the call at this time, other than to confirm that a threat was made," police said in a statement.

An investigation is underway to determine who made the call to St. Francis High. Police said more information will be released as it becomes available. 

Officials in San Jose have not disclosed whether any suspicious devices were found.