CALUMET CITY, Ill. (WLS) -- A family is accusing a suburban daycare of negligence after their 2-year-old boy died after a nap.

Jaylin Branch Jr. died on Feb. 20, after suffering a medical emergency while at Grandma Jones Daycare in Calumet City, according to his family.

A police report confirms officers responded to the daycare on Sibley Boulevard at about 1 p.m.

His family said Branch had a medical condition in which he suffered from seizures.

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The boy was allegedly put down for a nap at about noon, and, nearly an hour later, he was found unresponsive with blue lips by daycare staff, according to a police report obtained by ABC7.

He died shortly after.

Nearly a month after his death, Branch's family is suing the daycare for negligence, improper training and failing to take the proper precautions while Branch was sleeping.

The family also demanded that the state of Illinois open an investigation into the daycare facility.

Branch's family is represented by attorneys Cierra Norris and Evan Finneke of the C. Norris Law Group.