Multiple people are believed to have been injured in a shooting at a high school in Santa Clarita, Los Angeles county authorities have said.
CNN reports that deputies arrived at Saugus High School in Santa Clarita, which is 35 miles northwest of Los Angeles.
Meanwhile, ABC News has reported that students were led in single file through the campus by armed officers. Multiple ambulances were spotted at the scene.
Deputies are on the lookout for a suspect described as an Asian male in black clothing. A tweet from the department reads:
"#LASD Shooting at Saugus High School , Please avoid the area. Male Asian suspect black clothing last seen at the location. Deputies on scene and still responding. Avoid the area Further information to follow."
In another tweet, the Sheriff's Office informed parents that officers on the ground were protecting the students: "This is still a very active situation. Reports of approximately 5 victims being treated. Parents, deputies are on scene everywhere protecting your children."
Schools nearby have also been placed on lockdown as a precaution, according to sheriff's officials.
This is a developing story that will be updated as more information becomes clear.