The grieving mother of Hull student Libby Squire has paid a heartbreaking tribute to her daughter as police have launched a murder investigation.

On Saturday morning, Lisa Squire took to  to share her grief and pain as the family tries to come to terms with the devastating loss of the 21-year-old - whose cause of death has not been revealed.

Police confirmed on Thursday that a body pulled from the Humber Estuary the day before was in fact Libby's, they said yesterday they're now 'solely investigating' her death as a possible murder and have stopped probing other causes.

Mrs Squire said her heart was broken for Libby's friends before thanking her eldest child for 'making me a mummy' in a post which has been shared 2,000 times and received hundreds of messages of support.

One of her university flatmates, Amelia Cummins also posted a heartfelt tribute on Facebook where she described Libby as an 'incredible person'.

The post signalled the end of a seven-week wait for answers for the family who often travelled from their High Wycombe home to Hull, where their daughter went to university.

Mrs Squire, who affectionately called Libby 'Pie', wrote: '

My baby girl is gone. Gone forever. No more birthdays with us. No more Christmas days with us. No more family time all together.

Also read:

'No family should have to endure that. No sisters should have that special girl they have known for all their time on this earth taken from her.

No 11-year-old brother should have his idol taken from him. No dad should have his first born little girl, his princess, taken from him.

No grandparent should lose their first born grandchild child. No aunt and uncle lose their first born niece. No mother should have to watch her family go through all of that.'

Mrs Squire went on to reveal the crushing moment she had to inform 'the absolute love of Libby's life', Connor, that she had died.

She said:

There have been so many low points but by far the worst point was having to call Connor, the absolute love of her life, and tell him I am so sorry the girl you love the most in the world has gone.

'The girl you planned to be with for the rest of your life, the boy she planned to be with for the rest of her life. He made her happy. She made him happy. That made me happy.

'My heart is broken for her friends. The friends she knows and loves because they are my friend's babies. Watching your children become friends with your friend's children is a special thing.

Philosophy and religion student Libby went missing from a park bench - which has since been filled with tributes - just yards from her student accommodation after a night out on January 31.

Her mother's post continued: 'Those little people who came in to her life when she was pre-school and are still there.

'Those precious people that she meet at school in September 2002. The class her very experienced teacher told me was 'a unique class of children who acted more like brothers and sisters, not just friends'.

'How right was she as nearly 17 years on they are back together supporting each other and missing Libby.

Credits: Daily Mail