'I wish I could hold my sons again'
Half of refugees are experiencing psychological distress and mental illness resulting from trauma, according to a recent report by Germany's chamber of psychotherapists.
Rafat Hazeema is a Syrian refugee in Germany suffering from post-traumatic stress disorder.
His two youngest sons, Ahmed (12) and Mohammed (9) have been missing since the boat they were travelling on capsized off the coast of Malta in 2013.
As a result of their loss, he and his family are finding it difficult to settle in their host country.
Rafat spoke to the BBC's Deirdre Finnerty from his new home in a suburb outside Hamburg.
22 Dec 2015