One person remains in hospital after Friday night's Listen In festival in Auckland.
Three people were rushed to hospital in a critical condition after taking unknown substances at the event held at Mount Smart Stadium where a 20,000-strong crowd had gathered.
The injuries occurred at EDM concert Listen In 2019 with all the three people, plus two others who sustained more minor injuries, taken to Auckland Hospital, a St John spokesperson told 1 NEWS yesterday.
St John head of public affairs, Victoria Hawkins, confirmed to 1 NEWS the incidents involving the three critical patients were substance-related, but added they "can only treat anything ingested as a poison".
"Obviously they ingested something. As to what that is, we’re not sure," Ms Hawkins said.
The Green Party says the testing would save lives. (Source: Other)
It comes amid debate over whether the testing of drugs at music festivals should be made legal.
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