YouTube star Alex 'Sir Kipsta' Dragomir has died at the age of 17.
The internet personality — who was known for sharing his health battle online — passed away following a heart operation. Dragomir's family announced the sad news on Friday, June 11.
"Helllo , as you all might already know my brother passed away today he had a very hard operation which lasted 7 hours but his heart couldn't take it anymore ,he was too weak to survive. Heaven gained another angel Baby angel he was my rock my everything . RIP Alex," his sister wrote via his Twitter account.
"Thank you so much to those who supported Alex thru his hospital journey you all been so amazing," she added. "you all kept him going gave him the energy to carry on ! All the messages kept his head up . He carried on due to all the nice support he had from twitter. RIP Alex ."
Dragomir's school also confirmed the news on Twitter in a post that read: "@CockshutHillSch It is with great sadness, the news of ex student Alex Dragomir @KipstaUnited passing away today. Our thoughts and prayers are with his family and friends at this difficult and sad time. R.I.P Alex."
Dragomir gave a heads up to fans before the operation in June. "Going in for a life saving procedure if it don’t work then it’s been a great time people thank you for all you’ve done for me but we pray we see it through and we pray we get fatter and fitter after it for them to see progress and not say they can’t do anything after surgery," he wrote on Twitter.
A month before the vlogger's passing, Dragomir shared that he would be moving into the hospital full-time while waiting for a heart transplant. "After what I thought was a week of progression in hospital ,I’ve been hit with very very hard news for a 17 year old to take," he admitted at the time.
After Dragomir's mother quit her job to support her son, his followers raised almost $20,500 (£14,549) on GoFundMe to help fund the transplant.
"As most of you would know, Kipsta has unfortunately passed away following an unsuccessful surgery. Kip was one of the most selfless and strongest kids who lost his life way too young. His journey will never be forgotten. May his soul rest in peace ❤️," an update read.
YouTube said it was "saddened" by the news. "Even in the hardest of times, he has been an inspiration to so many."