Authorities in Paris have not ruled out foreign involvement in the recent acts of sabotage that caused widespread disruption to the city's train services on the opening day of the Paris Olympics. The disruptions are expected to affect trains until Monday, leaving hundreds of thousands of commuters struggling to reach their destinations.

According to the French Ministry of Transport, approximately 160,000 out of the 800,000 passengers expected to travel over the weekend continue to face cancellations. Nearly a third of trains in France's northern, eastern, and western regions were canceled, while Eurostar reported that a quarter of its high-speed trains between Paris and London were also affected.

The attacks, which targeted the country's high-speed rail network junctions north, southwest, and east of Paris, were meticulously planned. The assailants targeted cabling boxes that transmit safety information to train drivers, setting them on fire. However, a fourth attack on the line connecting Paris to Marseille was foiled.

So far, no group has claimed responsibility for the acts of sabotage that have crippled a significant portion of France's train services. Security sources initially suspected leftist militants or environmental activists, but no concrete evidence has been found to link them to the attacks.

French Interior Minister, Gerald Darmanin, stated that the investigation is progressing, and certain elements have been uncovered, which could soon lead to identifying the responsible individuals or group. Darmanin did not rule out the possibility of foreign involvement, stating, "Either it's from within or it's been ordered from abroad; it's too early to say."

The French rail company SNCF has been working tirelessly to restore normalcy to the affected lines. SNCF chief Jean-Pierre Farandou assured the public that services would be back to normal by Monday morning, as their staff worked through the night to rectify the damage caused by the acts of sabotage.

Passengers have been given regular updates and reminders of the cancellations and delays through loudspeakers at the train stations. On Saturday, approximately three in every ten trains were canceled in the three affected regions, with those running facing delays ranging from one to two hours.

As investigations continue, authorities remain determined to bring those responsible to justice and prevent any further disruptions to the Paris Olympics 2024.