France, Jan. 13 -- Backed by FNSEA, one of France's largest farm unions, the protest action piles pressure on President Emmanuel Macron's government after most EU member states approved the pact despite Paris's opposition.

Farmers inFrance, the European ​Union's largest agricultural producer, and other member states have been protesting for months over the EU-Mercosur deal as well as numerous local grievances.

A separate farmers' ​union, the Coordination Rurale, had already brought tractors below theEiffel Towerand theArc de Triomphelast Thursday in a surprise demonstration.

The Paris police said it estimated around 350 tractors at Tuesday's demonstration. One convoy of tractors had converged again by the Arc de Triomphe, w...