A reported threat made at three Chula Vista schools on Tuesday was determined by police to be unfounded, but extra precautions were taken at each campus.

Police in Chula Vista have arrested a 12-year-old student for reportedly creating threatening messages that circulated over texts and through social media at several Chula Vista schools on Tuesday after the student initially reported the same messages to the school the day before.

Police arrested a 12-year-old Bonita Vista Middle School student following a text message with a threat to carry out a campus shooting.