An underground electrical vault exploded at a restaurant in Huntington Beach, California, Saturday, leaving four people injured, CNN reported. The explosions occurred during an Oktoberfest celebration at the Old World restaurant.
Authorities responded to the scene at 8:10 p.m. local time to reports of multiple explosions that caused a transformer fire at the Old World Village complex. The complex had been hosting the Old World Village Oktoberfest festival.
According to ABC News, Jeff Lopez of the Huntington Beach Fire Department told reporters that staff at a festival restaurant noticed an odor coming from an underground vault just outside the facility. The underground vault contained three transformers but only one exploded. At one point the vault’s 50-lb. metal lid flew off during the explosion, Lopez said.
Two firefighters and two civilians were injured in the explosion. Three people had minor injuries. The fourth person had severe injuries, according to the report. Damages to the restaurant were minimal.
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