Update (12:55 p.m.) Per Glendale police, two 15-year-old girls have died as a result of the shooting. Authorities have not yet stated how the two knew each other, or if one was the shooter.

Independence High School in Glendale, Ariz. is on lockdown after what police are calling a “double shooting” occurred this morning.

Per ABC 15 in Glendale, a police spokesperson confirmed that two teenagers were shot in an “isolated incident,” though it has not yet been confirmed if the two were students at the school.

ABC 15 is also reporting that a source said that one of the teenagers has died, but that is also unconfirmed. Police said there is no active shooter and that they are “not necessarily looking for a suspect.”

We’ll update this post once we know more.

Contact the author at jordan@gawker.com.