Hours before the opening ceremony for the Paris Olympics, coordinated arson attacks on three lines of the high-speed TGV network on Friday caused chaos for travellers.<br /> <br />French rail company SNCF has warned that disruption from Friday's sabotage against the country's train network could last until the end of the weekend.<br /> <br />In a statement issued on Friday evening, SNCF said traffic "would improve" on affected lines on Saturday thanks to the work of thousands of rail workers.
