British hostage John Cantlie talks about a failed attempt to rescue him in a new video released by Islamic State (IS).
The video – the seventh featuring the journalist – starts with Mr Cantlie introducing himself as a British citizen “abandoned” by his government.
“In this programme I’ll tell you about a failed raid to rescue us and how it feels to be left for dead by your own government,” the 43-year-old tells the camera.
Mr Cantlie is again sitting behind a desk wearing an orange jumpsuit.
Sky’s Enda Brady said: “We don’t know where it was filmed, we don’t know when it was filmed.
“We’ve no way of independently verifying this footage but it is professionally filmed and very well edited.
“He is obviously speaking under great duress.”
The video is again titled Lend Me Your Ears and lasts almost nine minutes.
Last month IS released footage purporting to show Mr Cantlie in the embattled Syrian city of Kobani.
On the new clip, a Foreign Office spokesman said: “We are aware of a further video and are analysing its contents.”
Mr Cantlie’s father, Paul, died from complications following pneumonia last month – shortly after making an emotional appeal for his son’s release.
The family has previously appealed for “direct contact” with the militants holding him.
The footage is the first to emerge since footage was released confirming the beheading of a fifth Western hostage, US aid worker Peter Kassig.
His murder followed that of US journalists Steven Sotloff and James Foley and British aid workers David Haines and Alan Henning.