LOS ANGELES (CBSLA) — A child has died from the coronavirus-linked multisystem inflammatory syndrome in children, known as MIS-C. It is the first known death from the illness in Los Angeles County.

The child, who had a “complex pre-existing cardiac condition,” was being treated for the illness at Children’s Hospital Los Angeles and died from complication of the illness.

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“Children’s Hospital Los Angeles has treated 32 patients with Multisystem Inflammatory Syndrome in Children, or MIS-C,” the hospital said in a Wednesday statement. “The patients range in age from 4 months to 17 years. Thirty-one patients have been successfully treated and discharged.”

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At least 43 children have been treated for MIS-C in L.A. County, nearly 50% of whom were treated in intensive care units, according to the health department.

Of the children diagnosed with the syndrome, 26% were under the age of 5, 29% were between the ages of 5 and 11 and 37% were between the ages of 12 and 20. Latinx children account for 72% of the reported cases. None of the 43 children diagnosed with MIS-C in L.A. County have died.

“With COVID-19 numbers at critical levels, it’s crucial that families exercise caution and remain vigilant,” CHLA said in a statement. “If parents think that their child has MIS-C, it’s important that they contact their child’s doctor or pediatrician immediately.”

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More information about MIS-C can be found on the county’s website.