Devastated friends have paid tribute to Sherie-Lea James, 15, who died on Thursday after being taken to hospital.
Emergency services were called to a one-bed flat in South Ockendon, Essex, at 5.45am to reports of a girl unwell. Sherie-Lea was taken to Basildon Hospital where she was pronounced dead. Another 15-year-old girl was taken to the same hospital where she remains.
She is not thought to be in a life-threatening condition.
Friends claimed Sherie-Lea died "after being given drugs at a party."
They took to social media to pay tribute to a "beautiful young lady".
Jonty Edmundson said: "Sherie was my best friend, and I'm gutted & devastated."
Shannon Holland added: "R.I.P Sherie-Lea James. Known you since you were tiny!
"You grew up into such a beautiful young lady! My love goes to your mum, Your brothers and the rest of your family. Taken far too soon."