Following the death of Harry Styles' stepfather, Robin Twist, this week, the singer's former bandmates have reached out to their friend as he comes to terms with Robin's passing.

Taking to social media, Liam, Niall and Louis paid tribute to Robin and offered their condolences to Harry who acted as Robin's Best Man at his wedding to Harry's mother in 2013.

Sharing a beautiful shot of Harry's mother alongside her late husband, Liam wrote: "Harry my heart really goes out to you such an extremely sad day for us all who knew Robin."

"What a kind, gentle and beautiful soul, a true rarity to find in today's world. Sometimes they really do take the best of us far too soon," he concluded.

Niall chose to share the same image while paying tribute to a man who was clearly much loved by all those in the One Direction camp.

"Very sad to hear about the loss of Robin," Niall began in a post which has been liked more than 1,000,000 times since its upload yesterday.

"For those who had the pleasure of knowing Robin will know that he was the nicest , kindest, most generous , hilariously funny guy you'll have met," Niall continued. "He always had a smile on his face even when he was battling the terrible illness."

Turning his attention to his friend, Niall added: "Love ya H. Please give your mum and the rest of the family a massive hug from my family."

Louis, who shared a particularly close friendship with Harry during their days in One Direction, took to Twitter to offer his condolences.

"Devastated to hear the news about Robin. He was the such a lovely kind and funny guy. Sending all my love to the whole family. You'll be missed mate."

Robin died after losing his battle with cancer.