Orange County first responders investigate the scene of an explosion in Aliso Viejo, Calif., on Tuesday, May 15, 2018. The blast involved a building under renovation but the cause was not immediately known, according to authorities.
Orange County first responders investigate the scene of an explosion in Aliso Viejo, Calif., on Tuesday, May 15, 2018. The blast involved a building under renovation but the cause was not immediately known, according to authorities. SCNG via AP Mindy Schauer/The Orange County Register
Orange County first responders investigate the scene of an explosion in Aliso Viejo, Calif., on Tuesday, May 15, 2018. The blast involved a building under renovation but the cause was not immediately known, according to authorities. SCNG via AP Mindy Schauer/The Orange County Register

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