The owners of the Silverstone race circuit are expected to announce today, 11 July, that they will stop hosting the British Grand Prix after 2019.
The news comes before the track, in Northamptonshire, host this weekend’s Grand Prix.
F1's owners have not come up with an offer to try to secure the race but the circuit's bosses are understood to be keen to work out a solution.
Silverstone has been home to the race every year since 1987.
Silverstone had rejected an offer from F1 to take over the race for five years, which would absorb annual losses of between £2-3m.