The jet stopped transmitting data not long after starting the 400-mile journey between Russia’s two biggest cities (Picture: Flightradar24/Metro.co.uk)

A plane believed to be carrying Wagner Group boss Yevgeny Prigozhin was involved in a fiery crash near the city of Tver on the evening of Wednesday, August 23.

Plenty of questions still surround the incident – including whether the mercenary chief, who led his fighters on an audacious march to Moscow two months ago – was even really on board.