A second false active shooter incident was reported at Villanova University before the first day of classes, sources say.

Authorities are investigating two reports of active shooters that were both deemed false at Villanova University over the last four days. The false reports prompted shelter-in-place orders as well as large police responses as the college outside Philadelphia began fall semester.

A second false report about an active shooter at Villanova University prompted Radnor Township police to deploy to the Main Line campus Sunday, one day before classes are scheduled to start. Police responded to the Austin Hall dormitory Sunday morning and quickly determined the call was “false,