The mother of a 15-year-old girl who is thought to have died after taking ecstasy says she has lost her “best friend”.
Leah Heyes died after collapsing in a car park in Northallerton, North Yorkshire, at about 9.30pm on Saturday.
Detectives say there “may be mobile phone video footage” of what happened and are appealing for anyone with such images to come forward.
Leah’s mother, Kerry Roberts, said her daughter was a “thoughtful, beautiful girl, who was much loved” and was “fun, bubbly, and had a great sense of humour”.
She added: “Leah was my best friend. I’m absolutely heartbroken to have lost my beautiful girl.
“No words can describe how much she will be missed and the enormous gap she has left in our lives.
“She will be truly missed more than words can say. I love you always.”
Two teenagers, aged 17 and 18, have been released under investigation after being arrested on suspicion of being concerned in the supply of class A drugs following Leah’s death.
Detective Inspector Eamonn Clarke said police had had a “good response to our recent appeal for information but we know there are still people out there who have yet to come forward”.
He added: “Inquiries also reveal that there may be mobile phone video footage of the events of that tragic evening.
“This footage will be extremely helpful to our investigation and we are appealing to anyone who has footage on their phone, has been shown footage or knows of anyone who has such footage to come forward.”
Detectives said there were about 20 people in the area of Applegarth car park on Saturday night.
Mr Clarke said: “A young girl with her whole life ahead of her and everything to look forward to has died, a family has been devastated and a community left in shock. It is vital that people come forward and help us find the answers for Leah’s family and friends.”
:: Anyone with information should ring 101 and ask for Northallerton CID. Alternatively, they can call Crimestoppers, anonymously, on 0800 555111