rewrite this title 'Massive attack' halts trains across France ahead of Olympics opening

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France’s state-owned rail company SNCF says a ‘massive attack’ aimed at paralysing the high-speed network is causing delays and cancellations.
A “massive attack” on the train infrastructure of France’s largest rail company, SNCF, has caused a significant number of trains to be re-routed or cancelled on Friday morning, according to the transport company.”We ask all travellers who can do so to postpone their trip and not go to the station,” SNCF said on social media.The attack is expected to throw the transport system into chaos on the first day of the 2024 Paris Olympics.The attack is said to have involved arson, and repairs might affect routes throughout the weekend.Euronews has reached out to SNCF for comment.This is a developing story, and our journalists are working on further updates.