Niall Horan, a former One Direction bandmate, paid tribute on Instagram, writing: “I’m absolutely devastated about the passing of my amazing friend, Liam. It just doesn’t feel real.
“Liam had an energy for life and a passion for work that was infectious. He was the brightest in every room and always made everyone feel happy and secure.
“All the laughs we had over the years, sometimes about the simplest of things, keep coming to mind through the sadness. We got to live out our wildest dreams together and I will cherish every moment we had forever. The bond and friendship we had doesn’t happen often in a lifetime.”