French workers voted on Monday to halt production at a key oil facility that supplies Paris and the surrounding region, joining other petroleum industry shutdowns in a nationwide strike against government pension reforms.

France’s CGT union workers voted to halt production at Total’s Grandpuits refinery as part of protests over the government pensions reform plan, a union official said on Monday, according to Reuters.

“The decision has been taken to halt Grandpuits but with a slight majority. The management has asked for an hour of reflection,” the official said.

Halting production at PetroIneos’ 210,000 barrels-per-day Lavera oil refinery started on Sunday after a similar vote from the CGT union workers.