Watch: Wife appeals to Islamic State - please spare Alan's life

The wife of British aid worker Alan Henning has recorded a message for Islamic State - her husband's captors - urging them to spare his life.

Barbara Henning said that her call was joined by "Muslims across the globe" and hoped that the militants would "open their hearts and minds to the truth about Alan's humanitarian motives".

"Some say 'wrong time, wrong place'. Alan was volunteering with his Muslim friends to help the people of Syria. He was in the right place doing the right thing".