At his arrival, the site was affected by a power cut, which the local branch of the hard-left CGT union said was a protest action.

Source: https://www.express.co.uk/news/world/1760566/macron-france-protest-frexit-pension-reform

However, the CGT union called for a walkout at all refineries on Thursday as part of the nationwide strike.

Source: https://gazette.com/news/us-world/france-to-witness-12th-nationwide-strike-against-macrons-pension-law/article_6229b90b-77a2-522b-a843-94f867acdfcc.html

“The executive cannot govern without the support of its people,” said Sophie Binet, leader of the hard-left CGT union.

Source: https://newsinfo.inquirer.net/1763602/french-police-battle-black-clad-anarchists-during-may-day-rallies