GRAPEVINE, Texas — This story has been updated to include additional information from Grapevine police.
Students at Grapevine High School were sent home early Friday after a gun was found on campus, police confirm.
Grapevine police say around 1:30 p.m., a student notified officials of a Snapchat that showed a student who was on campus, posing with a gun on his waistband.
The school was immediately placed on lockdown while officers searched the campus.
Timberline Elementary and Cross Timbers Middle School were also placed on lockout as a precaution since they are nearby GHS.
Police say during their search they discovered a loaded gun in a student’s backpack.
Four teens were taken into custody in connection with the incident, authorities say.
Charges in the incident include terroristic threat, criminal trespass, possession of a firearm in a school zone, and possession of marijuana, police say.
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