Six teenagers in northern California were hurt Friday night when an explosive device was tossed into a backyard party, according to Manteca police.
Officers arrived on the 300 block of Santiago Way at roughly 11:15 p.m. in response to reports of “numerous” injuries due to an explosion.
"Preliminarily, we're thinking that it's a modified firework that was thrown into the backyard," Manteca police Chief Nick Obligacion told NBC News.
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A department statement said that roughly 60 “high-school aged kids” were at the house party when “an unknown subject intentionally threw an explosive device over a fence," which blasted close to the party-goers.
Police said that two victims were seriously injured while one was airlifted to a Bay Area hospital for a "more severe facial injury that doesn't require surgery," Obligacion added.
The victims were all juveniles, according to police.
People with information about the incident can call the Manteca Police Department at (209) 456-8101.