It cautioned the Socialist administration that the European soccer competition starting in France on June 10 might face disruptions if it did not compromise. Demonstrators filled the streets as workers halted operations at oil refineries, nuclear power plants, and railways in response to the union's call, while also setting up roadblocks and setting fires at key ports and distribution centers. Prime Minister Manuel Valls stood firm on the law, stating that there could be adjustments to the reforms but not to any major components. The CFDT trade union supported this stance. The protests, prompted by a reform aimed at simplifying hiring and firing procedures, were seen as a crucial moment to determine the strength of the CGT-led opposition. Scores of participants from a youth protest movement known as Nuit Debout joined the street marches, which were closely monitored by police due to the potential for violence. Previous rallies had resulted in injuries to both police officers and protesters, as well as numerous arrests. When asked if their union was considering disrupting the Euro 2016 football contest, CGT chief Philippe Martinez suggested that the government could prevent such action by taking action. FO union leader Jean-Claude Mailly compared the situation to a football game, stating that it was time for the prime minister to reconsider his decisions. Despite calls to change course, Prime Minister Valls remained steadfast in his support of the controversial labor law, which allows companies to bypass certain national labor regulations with approval from a majority of employees. The SNCF national train company reported that around two-thirds of national, regional, and local rail services were operational, indicating that the impact of rail workers' strikes was less severe compared to the previous week when half of the trains were not running. Following police action to remove blockades at refineries and fuel distribution centers, Prime Minister Valls stated that 20-30 percent of fuel stations were experiencing shortages. Transport Minister Alain Vidalies expressed that the situation has improved, with fuel deliveries from depots to gas stations on the rise. The number of fuel stations experiencing shortages in the Loire-Atlantique region decreased from 140 on Wednesday to 83 on Thursday. The French nuclear power capacity has been reduced by up to five gigawatts because of stoppages, which accounts for just over six percent of the country's total production capacity. Experts in the power industry believe that the nuclear plant strike is unlikely to cause major blackouts due to legal restrictions on strike actions and the ability to import power from other countries. However, the strike usually leads to higher operating costs for the EDF power utility. In addition to the nuclear plant strike, there are also dockers striking at the southern port of Marseille, causing a backlog of ships waiting to offload oil, gas, and chemicals. A protest over pension reform in 2010 ended after police dispersed picketers at supply depots and railworkers faced disruptions that affected their paychecks. Total SA, a major oil company, stated that almost all of its fuel distribution depots are operational, but noted that two out of its five refineries in France are currently not operating and two more are expected to stop in the near future. The CGT union is facing a more isolated fight this time. Laurent Berger, leader of the CFDT union which supports the proposed labor reform, expressed concerns about the tense political and industrial relations environment, urging for a more peaceful approach.