Birthday tributes have been paid to a Glasgow student who took her own life in prison after she was bullied in the cell. 

Family and friends of Katie Allan have taken to social media to wish her a happy 23rd birthday, nearly two years after her death. 

She died at the age of 21 in June 2018, while serving a 6-month sentence for a drink-driving offence that led to a 15-year-old boy being knocked unconscious on Eastwoodmains Road in Giffnock. 

READ MORE: Katie Allan: Scottish Government to review prison mental health after Glasgow student death

Her mother, Linda Allan, wrote: "Happy 23rd birthday Katie. We love and miss you every day."

One person responded to the message and said: "Never forgotten in the hearts and minds of many, many people who never knew you, but who know your story.

"We are all hoping that something positive will come out of your tragic death.

"Your amazing family are keeping your story alive, and will keep on fighting for change."

Katie's family has said the University of Glasgow student was failed by the police and prison service. 

READ MORE: Family of Katie Allan say she was failed by police, prison service and sheriff

They are calling for radical reform for the way prisons deal with mental health after Katie's death, which they blame on bullying. 

The family wants to see round-the-clock access to suicide helplines in jail, an end to solitary confinement for vulnerable inmates and a review of Fatal Accident Inquiry laws.

One person responded to the birthday message and said: "I’ve never met you but follow your campaign to improve mental health services in young offenders institutions.

"Thinking of you and your family today."

Another wrote to the grieving mother and said: "I dont know you, only know your story but my heart breaks for you all each time I see your beautiful girl."