The FBI is investigating the explosion at a California fertility clinic as an act of terrorism

Sheriffs deputies walk near the scene of an explosion Saturday, May 17, 2025, in Palm Springs, Calif. (AP Photo/Eric Thayer)

This story was updated on Sunday, May 18, 2025, at 8:25 a.m.

The person believed responsible for an attack targeting a Southern California fertility clinic Saturday posted rambling online writings before an explosion that investigators are treating as an act of terrorism, according to a law enforcement official.

The suspect, who died in the explosion that tore through the clinic and rattled the upscale California city of Palm Springs, also attempted to record video or stream the attack, said the official, who was not authorized to discuss details of the attack and spoke on condition of anonymity to The Associated Press.