At least one person was killed in an explosion Saturday morning near a fertility clinic in Palm Springs, California, that authorities are calling an "intentional act of terrorism."Palm Springs city officials said in a Facebook post that the blast occurred just before 11 a.

The investigation into a deadly explosion — deemed "an intentional act of terrorism" — at the site of a Palm Springs fertility clinic Saturday is focused on a "person of interest" with no further imminent threat to the public, the FBI said.