Authorities said several people are recovering from alcohol or drug problems that took place at Discovery Meadow.
The San Jose Fire Department first responded to multiple calls of more than a dozen patients requiring medical attention around 8:23 p.m.
Police said Friday night, paramedics treated some people at the park, but at least 10 were taken to the hospital.
SJFD said in a Saturday morning tweet on X, fourteen people were taken to a local hospital.
The concert began at 5 p.m. and by 10:34 p.m., SJFD said the incident wrapped up.
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