The photo showed a can of Schweppes Gold soft drink and what appeared to be a detonator and switch on a blue background.

“The divided Crusaders of the East and West thought themselves safe in their jets as they cowardly bombarded the Muslims of the Caliphate,” Dabiq magazine said. “And so revenge was exacted upon those who felt safe in the cockpits.”

The group also published a photo of what it said were passports belonging to dead Russians “obtained by the mujahideen”. It was not immediately possibly to verify the authenticity of the photos published in the magazine.