Drivers plan to disrupt traffic across France on Saturday by blocking roads, bridges and toll booths in a mass protest at rising fuel prices, BBC reports.
Dubbed the "yellow vests" after the high-visibility jackets they use as their symbol, they are expected to muster in at least 700 locations.
They accuse President Emmanuel Macron of abandoning "the little people".
Mr Macron admitted this week that he had not "really managed to reconcile the French people with its leaders".
Nonetheless, he accused his political opponents of hijacking the movement in order to block his reform programme.
Officials have warned that, while they will not stop the protests, they will not allow them to bring the French road network to a standstill.