SAN DIEGO (KGTV) – A lockdown at Clairemont High School was initiated late Monday morning due to a possible threat against the campus, San Diego Police said.
In a post on X, SDPD officials stated: “San Diego Police Department, along with San Diego School Police, are currently conducting a safety sweep at Clairemont High School campus after receiving information of a potential threat towards the campus (4150 Ute Drive). The campus will remain on lockdown.”
SDPD officials did not release any details on the possible threat but told ABC 10News they received a report of the threat just after 11 a.m.
As of 1 p.m., the lockdown remained in effect. At one point, police said there were about 30 officers on the campus and a helicopter hovering over the neighborhood.
SDPD posted at 12:24 p.m. on X that Marston Middle School was also on lockdown due to its proximity to CHS.
SDPD said parents and guardians can head to the following locations to prepare for pickup once the lockdown is lifted:
- YMCA - 3401 Clairemont Drive
- 2800 Cowley Way, behind Sports
- Canyon View Church of Christ — 4292 Balboa Ave.
The lockdown was lifted around 1:40 p.m., according to the San Diego Police Department. Police said threats of an active shooter were unfounded. School has resumed, and parents are able to pick up their children from school.
San Diego Unified School District and the school were contacted, but they told us to direct all of our questions to SDPD.
— San Diego Police Department (@SanDiegoPD) September 22, 2025
This story will be updated as more information becomes available.