Bartram High School under lock-in following shooting threat

PHILADELPHIA (CBS) - A high school in Southwest Philadelphia was placed on lockdown following a shooting threat. Philadelphia police say Bartram High School was placed on lockdown after a student notified the school of a shooting threat posted on Instagram.

Authorities say the post was of a male holding a rifle with the caption, "gonna shoot up the school at 11:00 am."

School security put the school on lockdown at 10:10 a.m. Friday.

School officials say the lockdown was lifted and they are now under a lock-in, meaning students can move from class to class but cannot leave the building or re-enter.

Attendance is being taken and each room is being checked.

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Stephanie Ballesteros

Stephanie Ballesteros is a digital managing editor at CBS News Philadelphia. She has previously written for WSVN in Miami and WAVY in Norfolk. Stephanie covers breaking news, crime and lifestyle content. She also produces content for the CBS Philadelphia social media pages and streaming platform.