Nine people are believed to have overdosed in an inner Perth suburb.
The ANC reported Emergency services attended the Colombo Street home just before midnight with nine people unconscious or violently ill.
Seven men and two women were rushed to hospital.
This morning, two of the students are in a critical condition in Royal Perth Hospital. While the other seven remain in two other hospitals with conditions not believed to be life-threatening.
Police have cordoned off the property and are investigating.