The head of the FIA's Formula 1 technical department, Marcin Budkowski, has resigned with immediate effect.
Budkowski was regarded as a rising star at the FIA, and a key part of the new generation of heads that, in time, were eventually expected to replace the likes of Charlie Whiting and Jo Bauer.
He has now been placed on three months gardening leave by the FIA.
Budkowski's FIA role gave him extensive access to privileged technical information from teams and engine suppliers, including research and development ideas that are typically run past the FIA before being produced.