No threat found at San Fernando Valley schools following series of alarming calls, police say

LOS ANGELES (KABC) -- A series of threatening phone calls made to several schools in the San Fernando Valley prompted immediate lockdowns Tuesday morning, but after an hours-long investigation, police found no evidence of any threat.

Note: The video above is from a previous report.

According to authorities, calls were made to Notre Dame High School in Sherman Oaks, Bishop Alemany High School in Mission Hills, and Agoura High School in Agoura Hills.

In the call to Notre Dame, a man claimed he was going to "shoot up" the campus, according to investigators.

Out of an abundance of caution, authorities responded to all three schools.

According to the Los Angeles School Police Department, Verdugo Hills High School, Sylmar High School, San Fernando High School, and Caesar Chavez Learning Academy all received "phone calls that raised concerns." However, a spokesperson said there was "no evidence of a credible threat" at any of the campuses.

All lockdowns were lifted Tuesday afternoon and no injuries involving students and staff were reported.