The Kern High School District officials say that Foothill High School is on lockdown.
KCSO officials placed the school on lockdown at around 10:40 A.M.
KCSO lifted the lockdown at around 12:57 P.M. Thursday.
A Sheriff's Spokesman tells 23ABC that they were investigating a person armed with a gun in a neighborhood near Foothill High school.
The high school was on lockdown as a precaution and there's no immediate word of any injuries.
KCSO officials say a white male with a dark shirt and pants was armed with a firearm.
He fired the weapon, but according to officials no one is hurt.
All started with an altercation between a man and a woman, the woman escaped.