A branch of the far-left union General Confederation of Labour (CGT) early Wednesday shut down the country’s largest hydroelectric power plant Grand’Maison at Allemont, in the southwestern Isere region.

Workers protesting the government’s planned overhaul of the pension system closed down the facility at approximately 0600GMT Wednesday.

The action was made by CGT Energie-Isere, a branch of the trade union, through messages on their Facebook page.

This morning’s outages affected several suburbs south of the capital, according to grid operator Enedis, as well as Orly airport, in addition to the Rungis market, which itself was subject to a power

Read more: French union shuts power plant in latest protest action