A 14-year-old girl who was found dead in a Glasgow flat has been described as a "lovely girl" by her school.

A drugs probe has been launched after Zoe Bremner died following an incident at Dundasvale Court, Cowcaddens, on Sunday.

A girl and a boy, both aged 15, were taken to Queen Elizabeth University Hospital but have now been released.

Zoe, a pupil at Knightswood Secondary, was at a house party with friends on Saturday afternoon before returning to Dundasvale Court.

Emergency services were then contacted at 12.45am on Sunday.

Head teacher at Knightswood, Kay Dingwall, said Zoe will be greatly missed by everyone at the school.

She said "This is such tragic news and our heartfelt sympathies and prayers are with Zoe's family and friends at this extremely sad time.

"Zoe was a really lovely girl and will be sorely missed by all the staff and pupils at the school.

"We will do all that we can to help and support young people and staff who will obviously be deeply affected by this saddest of news today and during the difficult days ahead."

Friends have also paid tribute to Zoe, described as someone whose "smile could light up any room".

A friend posted: "Rest easy. I still cannot get my head round the fact you are gone."

Another added: "A smile that could light up any room. Shine brighter than the stars. I will love you and miss you so much."

A friend said: "You will be remembered by everyone. The nicest person I have come across."

Another added: "Rest easy princess. You were one in a million."

Detective Inspector Greig Wilkie said: "This is very disturbing and our thoughts are with the family at this distressing time. We are currently carrying out extensive enquiries in relation to the incident.

"Our investigation will include whether any substances have been a factor in this incident. If anyone has any information which could assist our investigation, I would urge them to contact us."