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Deadly Explosion at Aliso Viejo Medical Building Was ‘Intentional Detonation’
NBC Los Angeles

The explosion at an Aliso Viejo medical building was an “intentional detonation,” and the explosive device was delivered to the building, addressed to a specific person, federal sources tell the NBC4 I-Team.

One person was dead and at least three were hurt after an explosion ripped through a medical building in Orange County, forcing children in a nearby day care to flee, as bomb squad investigators combed the scene, authorities said Tuesday.

Crews extinguished a fire that had erupted in the building that was under construction. Bomb squad investigators and FBI agents were looking into the cause of the blast, but authorities assured the public that there was no lingering threat to the community. Initial reports say that the explosion was not being considered suspicious.

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