A petition to reunite a five-year-old brain cancer patient with his parents has reached 76,000 signatures, Good Morning Britain has learned.
Family campaigner Sanjay Ganatra and the King's friend Ethan will hand a petition into Downing Street asking the PM to reunite Ashya with his parents.
Ethan said: "They're finding themselves very stressed. I know Naveed [King] has only slept for three hours in the last 72. I spoke to him on Skype personally last night and he said he was just very, very stressed about it all."
Ashya King's parents told the Daily Mail they fled the UK after being told NHS treatments would leave him with life-long disabilities.
The head of the police force which applied for a European Arrest warrant against the parents of Ashya King has now urged their release.
A British mother whose son's life was saved by proton therapy has told ITV that she defied NHS doctors' advice to pursue the treatment.