The Orange County Sheriff’s Department Wednesday was disputing media reports that the deadly explosion at an Aliso Viego medical building was caused by an intentional detonation.
Multiple local media outlets have cited unnamed sources claiming that Tuesday afternoon’s explosion — which left one woman dead and three others injured — was intentional and originated from an explosive device delivered to the building. But the sheriff’s department tweeted late that evening that it has not “conclusively identified the source of the explosion” and the ”investigation is in early stages.” Department officials said they would share information as it was confirmed.
Orange County Sheriff’s Cmdr. Dave Sawyer said investigators “don’t know if it was an intentional detonation of a device.” He said authorities have not found an explosive device at the scene.
FBI spokesman Mike Gifford also said the cause of the explosion was unknown and the agency had sent resources to help with the investigation, which was being led by the Orange County Sheriff’s Department.
The explosion sparked a fire at 11 Mareblu at about 1:10 p.m. Tuesday, but it was quickly doused after a large-scale response by fire and sheriff’s officials.
Authorities initially indicated a car had crashed into the building, but Orange County Fire Authority Capt. Tony Bommarito and sheriff’s officials said later that was not the case.
“We have confirmed there was no vehicle inside,” Bommarito said, adding there was an explosion inside the building.
The woman who died was inside the building when the blast occurred, he said.
Although the cause of the blast was still unknown, Bommarito said there was “no immediate hazard” to the community, and a bomb squad was sifting through the wreckage inside the structure late Tuesday. Outside the building, a massive contingent of sheriff’s deputies and fire crews amassed, joined by federal agencies that were summoned to assist with the probe.
Sheriff’s deputies snapped photos of vehicles that were leaving the scene throughout the afternoon.
Bommarito said one of the three injured people suffered from smoke inhalation, but the extent of the other victims’ injuries was unknown.
Children and staff at nearby Academy on the Hills preschool initially sheltered in place while the investigation continued, but children were later evacuated to a Target store parking lot so they could be reunited with their parents. No children were injured, officials said.
Video from the scene showed teachers leading the children along a sidewalk toward the Target. Other people could be seen wheeling cribs down the street as the area was evacuated.
A woman who was on her way to an appointment in the area told CBS2 she arrived just after the blast occurred, and she saw fire on the roof of the building.
“Then everyone started running out of buildings everywhere with looks on their faces of just horror,” the woman said. “… I saw two women come out full of blood, hair singed, just glass stuck to the hair, glass stuck to their bodies. Their skin was burned and peeled back, and they were just in shock.
“… They weren’t on fire, they were helping each other across the street, walking very slowly and a lot of shock, shaking, just full of ash all over their face, eyes bloodshot, just blood all over,” the woman said.
Sheriff’s deputies were called to the same block of Mareblu at 11:35 p.m. Monday for a “patrol check,” according to sheriff’s records. It was not immediately clear what prompted that call.
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