A young boy at the centre of a legal battle in the United Kingdom has died after doctors removed him from life support.

Archie Battersbee, 12, had been in a coma since the beginning of April of this year. His parents had been fighting to keep him on life support, while doctors at the Royal London Hospital said there was no hope of him making a recovery and treatment should end.

His parents lost the legal battle, which included asking to move him to a hospice, in a British high court on Friday. Doctors took Battersbee off a ventilator and other medical devices. His family says that he died at 12:15 p.m. local time.

The boy's mother, Hollie Dance, announced his death to media outside the hospital. "I would just like to say, I am the proudest mom in the world," she told reporters. "He was such a beautiful little boy. He fought right to the very end, and I am so proud to be his mom."

The boy was found unresponsive in his home by his mother on April 7 with a cord around his neck. It is believed that he was taking part in an online blackout challenge.

Alistair Chesser, the Chief Medical Officer at Barts Health NHS Trust releases a statement saying "... our thoughts and heartfelt condolences remain with [Archie's family] at this difficult time. Medical staff provided high-quality care with extraordinary compassion over several months in often trying and distressing circumstances. This tragic case not only affected the family and his carers but touched the hearts of many across the country."

Doctors had said the boy was unresponsive and that his brain stem was dead. However, Dance and her legal team argued that a video showing the boy gripping his mother's finger was proof that he was responsive. "His heart is still beating, he has gripped my hand, and as his mother and my gut instincts, I know that my mom is still there," Dance had previously told reporters.