Angry farmers were back to Paris on their tractors on Friday in a new protest demanding more government support and simpler regulations, on the eve of a major agricultural fair in the French capital.

Dozens of tractors drove peacefully into a neighbourhood on the capital's west side carrying flags from Rural Coordination, the farmers' union that staged the protest.

The protesters then posed with their tractors on a bridge over the Seine river with the Eiffel Tower in the background.

The latest protest comes three weeks after farmers lifted roadblocks around Paris and elsewhere in the country after the government offered over 400 million euros ($433 million) to address their grievances over low earnings, heavy regulation and what they describe as unfair competition from abroad.