Overview

• Initial hospital testing detected cocaine, ecstasy, amphetamines and MDMA in the child's system.
• Prosecutors, police and city officials say the child is seriously injured but not in a life-threatening condition.
• The child vomited plastic-like material during the car ride to the hospital after showing apathy and an unusual fixation on a toy.
• Police searched the playground with drug-detection dogs but found no source, and the city reopened the area on Thursday.
• Officials urge parents to watch children carefully in public spaces and report suspicious items as the investigation continues.