Marijuana-laced candy sickens 19, including 6-year-old, at quinceanera

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According to KGO, 12 of the victims tested positive for THC, the active ingredient in marijuana. They experienced symptoms such as rapid heart rate, dilated pupils and nausea, CNN reports.

THC also was found in gummy candies at the party, preliminary tests showed.

"These are innocent kids," said Raul Hernandez, a security guard for the Women's Building, the venue where the party was held. "They don't know. They see a candy, they eat it."

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Authorities are still trying to track down where the candy came from.

"We want to make sure from this perspective this wasn't an intentional act by the caterer or anyone who attended the party," San Francisco police Officer Grace Gatpandan said, according to KGO.

A representative for the Women's Building told KGO that "the only thing we include with our rental is space and tables and chairs."

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