The victim is said to have been snatched by Filipino Islamist rebels Abu Sayyaf

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Followers of the barbaric Islamic State (ISIS) published a film reportedly showing a German man they captured in November.

The victim is said to have been snatched by Filipino Islamist rebels Abu Sayyaf off the coast of Philippines.

In the recently released video, the elderly man, thought to be 70, can be seen in an orange jumpsuit standing in a freshly dug grave.

Masked jihadis stand behind him holding assault rifles against the backdrop of the black ISIS flag and threaten the German government, saying: "To the German government: it seems that you are not paying attention to our demands.