Firefighters are responding to a powerful explosion at a building in Palm Springs that rocked the area late Saturday morning—and investigators are not ruling out terrorism.

The blast occurred shortly before 11 a.m. at the American Reproductive Centers on North Indian Canyon Drive, near East Tachevah Drive, and was felt up to two miles away.

'Everything is in question—whether this is an act of terrorism,' Lt. William Hutchinson told The Desert Sun from the scene.

Multiple witnesses reported hearing a loud boom, and dramatic videos shared on social media show the explosion shattered windows of a nearby liquor store.

Authorities have not confirmed whether the explosion was accidental or intentional, but Hutchinson said there appears to be at least one fatality.