The British hostage threatened with murder by Islamic State militants has been identified as East Yorkshire-born aid worker David Cawthorne Haines.
Mr Haines, who was brought up in Perth, Scotland, has 16 years’ experience on humanitarian missions and has worked as a security manager in South Sudan. He is 44 and is thought to have been kidnapped in March this year.
A video released by his captors apparently shows Mr Haines - who is married and has two daughters aged four and 17 - wearing an orange jumpsuit with his hands tied behind his back and kneeling next to an Islamic state militant clad in black clothes.
The New York Post quoted his former employer, Tiffany Easthom of Nonviolent Peaceforce in South Sudan, as saying, “ He has a good sense of humour and really cares about people.”
The Foreign Office has yet to confirm whether the hostage is Mr Haines.
David Cameron has told MPs that despite the threat, the UK will not be “cowed” by Islamic State militants who have already killed two American journalists.
Denouncing the beheading of Steven Sotloff as “sickening and brutal”, the Prime Minister voiced “shock and anger that it again appears to have been carried out by a British citizen”.
And he told MPs: “Let me be very clear. This country will never give in to terrorism. Our opposition to Isil will continue at home and abroad.”
Last night it emerged several Yorkshire men are said to be among hundreds to have left the UK to fight in the Middle East.
The Leeds-based North East counter-terrorism unit said it was aware of large numbers heading to the region. It is thought many are joining the Kurdish groups seeking to check the advancing Islamic State extremists as they spread through Iraq.
The Home Office has warned against people travelling abroad to fight on either side. A spokesman said: “Anyone who is concerned about a friend or loved one who is planning to travel should come forward and speak to police.”