The brother of a British surgeon, who died in Syria, has said his family has felt "abandoned by the officials in our country and abroad".
Shahnawaz Khan told ITV News that British authorities treated his brother "like he's been caught drinking on the streets of Dubai" instead of as a humanitarian aid worker.
David Cameron has written to the mother of a British doctor who died in custody in Syria, describing his death as "a sickening tragedy".
The mother of British doctor Abbas Khan, who died after 13 months in a Syrian prison, has accused the regime of "murdering" her son.
Relatives of British surgeon Dr Abbas Khan have said they do not understand what led to his death just days before he was due to be released