Just Stop Oil could disrupt this Sunday's British Grand Prix - but it won't be the first time such a protest has occurred at Silverstone.
The environmental activists, who want the UK Government to stop licensing all new oil, gas and coal projects, have disrupted a number of sporting events this year - including the men's Ashes, the World Snooker Championship and Wimbledon.
The controversial group targeted last year's British GP, with four men and two women receiving suspended prison sentences for invading the Silverstone track. Formula One chiefs fear the same could happen at Silverstone on Sunday.