Tomlinsons former bandmate Zayn Malik wrote, love you bro!

All of your family is in my prayers.

proud of your strength and know your mum is too.

All Crops: 483577496 Collection: Getty Images Entertainment LONDON, ENGLAND - AUGUST 10: Louis Tomlinson and Johannah Poulston attend the Believe in Magic Cinderella Ball at Natural History Museum on August 10, 2015 in London, England. (Photo by Stuart C.

Credit: Stuart C. Wilson/Getty Images

Im always here for you through everything as you have been for me.

Paynes girlfriend Cheryl Cole also shared, My heart breaks for you.

I am so sorry.

Niall Horan, also in 1D, tweeted, Very sad news .

Louis I love you mate and Im / all of us are here for you all the way .

Youre mum was an incredible person.

See all the messages below