A slow-moving protest by the Organisation of European Road Transport Operators (OTRE) is under way on the Paris ring road, with hauliers demanding help as fuel prices rise.
The action, a go-slow rather than a full blockade, is meant to press the government for direct support and clearer fuel aid.
The dispute comes after talks with ministers stalled. OTRE says current measures do not go far enough for road freight firms facing tighter margins.
More demonstrations are expected in the coming days, including outside Paris, as transport operators warn that higher costs are eating into business.