The NHS is to pay for five-year-old brain tumour patient Ashya King's proton beam therapy treatment in the Czech Republic.
His parents Brett and Naghemeh King sparked an international police hunt after they took their son out of Southampton General Hospital and travelled to Prague for the treatment which was not available for him on the NHS.
The Crown Prosecution Service has said that officials applied for a European arrest warrant in the Ashya King case at the request of Hampshire Police for an offence of "cruelty to a person under the age of 16 years".
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.