The Malaga hospital source said it was possible Ashya could receive chemotherapy and radiotherapy there, meaning that he may not have to return to England before going on to Prague.
The Prime Minister said it appeared that “common sense” had now prevailed, with Ashya’s reunion with his parents.
Speaking on ITV1’s Good Morning Britain, David Cameron said: “I think in the end common sense won out and this poor child has been reunited with his family, but it is tragic they were separated. Having had a disabled child often in hospital being fed through a tube, those pictures absolutely meant so much to me, because the thought of having your much loved boy separated from you for all those hours and days, I can’t think of anything more painful for a parent.”
A fundraising page set up to help pay for the proton beam treatment has so far raised more than £21,000, while charity Kids’n’CancerUK said they have agreed to pay the £100,000 needed for Ashya’s treatment, plus living costs, after donors pledged £35,000 in 24 hours.