A 15-year-old boy is in a critical condition and another five teenagers are also in hospital after they ingested an unknown substance in north Queensland.
Emergency services were called to a home on Malcomson St, North Mackay, about 10.55am on Thursday.
Police say six teenagers – three boys and three girls – at the property needed medical treatment after ingesting a substance.
One boy, aged 15, is in a critical condition in hospital.
Police have declared a crime scene with detectives and scientific officers trying to identify the substance the teens ingested.
More to come.