The European Court of Human Rights (ECHR) has denied Archie Battersbee's family's latest appeal to intervene in the decision to remove his life support.
The family of the 12-year-old had initially submitted an application to ECHR to postpone the withdrawal of his life support treatment, which was due to be switched off at 11am today.
It comes after the family lost a previous a Supreme Court bid to keep it going, reports Sky News.
Speaking to reporters outside the hospital before the latest appeal was rejected, Archie's Mother, Hollie Dance, said: "I'm hoping that they (ECHR) step in and give Archie the right to live. I think he deserves that.
"We will not give up on Archie until the end."
In a statement, the European Court of Human Rights said it "would not interfere" with the decisions of UK courts that life-support treatment should be withdrawn from 12-year-old Archie Battersbee.
The boy has been in a coma since he was found unconscious in April and is being kept alive by a combination of medical interventions, including ventilation and drug treatments, at the Royal London Hospital in Whitechapel, east London.
His parents, Hollie Dance and Paul Battersbee, submitted the application to the Strasbourg-based court just hours before Barts Health NHS Trust was initially expected to withdraw Archie's life support.
In a statement, the court said it would not grant an interim measure to continue treatment and declared the parents' complaints "inadmissible".
The statement added the court would only grant such requests "on an exceptional basis" and "when the applicants would otherwise face a real risk of irreversible harm".
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