ALISO VIEJO, Calif. -- The woman killed in an explosion authorities believe was intentional in Orange County Tuesday has been identified as Ildiko Krajnyak-Vestil of Trabuco Canyon.
The explosion happened from the inside of the two-story medical facility located on 5 Mareblu just after 1 p.m.
The person who died was inside the building at the time of the blast. Authorities first believed a car had crashed into the side of the building but later said that isn’t the case.
The FBI and a bomb squad were sent to the scene to assess the situation and investigate the cause of the explosion.
At a press conference Wednesday afternoon, the FBI said they ruled out any accidental cause of the explosion, saying they believe the incident was intentional.
An FBI official said there were items found at the scene that were inconsistent with what would be at the medical facility.
A motive is unclear at this time and authorities say they haven't arrested any suspects.
Officials told KABC that the medical facility appeared to be under construction. A preschool in the area was ordered to evacuate as a precaution after the explosion.
Authorities held a news conference giving an update on the investigation Wednesday afternoon. Watch the update below: