A threat prompted police activity at San Marcos High School Friday morning that kept some students locked in their classrooms for hours and forced deputies to turn away students being dropped off.
San Diego County Sheriff's deputies responded to the school at 1615 West San Marcos Blvd. at 8 a.m. and a lockdown for students and staff was initiated, the sheriff's department said.
K-9s from the Bureau of Alcohol, Tobacco and Firearms (ATF), including one named Barny, helped deputies and assisting CHP and Cal State San Marcos officers secure the campus.
Law enforcement teams cleared a soccer field and then moved sheltered students and staff to the fields so they could screen classrooms and campus buildings, according to the SDSO.
Get San Diego local news, weather forecasts, sports and lifestyle stories to your inbox. Sign up for NBC San Diego newsletters.
The high school sent a text message to parents to alert them about the lockdown. Students and staff were released at around 11 a.m.
Extra patrols were conducted on the campus Friday and they'll continue Monday, deputies said.
Nothing suspicious was found during the search, deputies said in a news release Friday afternoon. The situation at San Marcos High School was not connected to a threat made on social media targeting San Marcos Elementary earlier this week, according to the SDSO.
Local
Students or anyone else with information about future threats are asked to contact school officials or call the Anonymous Student Speaking Out Hotline at (888) 580-8477.
If you or someone you know is experiencing a crisis, confidential counseling is available 24 hours per day at the Crisis Lifeline at 988.
