The person “responsible” for the “potential threat” directed at the Lewis Katz School of Medicine at Temple University that prompted closure and class cancellation is in custody, according a university spokesperson.

“The individual came in voluntarily to Temple police,” said Temple University spokesperson Ray Betzner.

There is no longer a threat present, though classes remain cancelled.

The threat, which was deemed “credible,” was received overnight, Betzner said, though he was unable to provide further details on its nature or on the individual now in custody.

Clinical activities at Temple Hospital and the university’s Main Campus were unaffected while Temple and Philadelphia police investigated the matter.

Philadelphia police did not respond to a request for comment.