Rob Delaney has shared a heartbreaking message to mark his first Father's Day without his young son Henry.

The little boy passed away in January of this year at the age of two and a half after developing a brain tumour. In the tweet, Rob sent best wishes to every other parent who had lost a child.

This is the first Father’s Day since my beautiful Henry died. Love today to all dads & moms who’ve lost a child.? pic.twitter.com/nUmO3Qeybd

— rob delaney (@robdelaney) June 17, 2018

"This is the first Father’s Day since my beautiful Henry died," he wrote. "Love today to all dads & moms who’ve lost a child." Rob announced Henry's death in February, explaining his son had been diagnosed with the tumour in 2016 shortly after he turned one. Rob and his wife, who have two other children, were left "devastated" by the loss, he said. "Henry was a joy," he wrote. "He was smart, funny, and mischievous and we had so many wonderful adventures together, particularly after he'd moved home following fifteen months living in hospitals. "His tumor and surgery left him with significant physical disabilities, but he quickly learned sign language and developed his own method of getting from A to B shuffling on his beautiful little bum. "His drive to live and to love and to connect was profound."