A false call for an armed shooter triggered a massive police response at Clarement McKenna College; L.A.'s second 'swatting' incident in two days

Students and staff were advised to shelter in place as authorities scoured the campus for the potential threat, which was deemed to be unfounded.

An alert of a possible shooter at Claremont McKenna College Thursday evening that prompted shelter in place orders and a multi-agency law enforcement response turned out to be a false report, according to Claremont police.