Three arson attacks have disrupted high speed train services in France, a few hours before the Olympics opening ceremony in Paris. Trains from London have been affected, along with other international and domestic high speed services within France. Prime Minister Gabriel Attal says the effect on the country’s railways has been ‘massive and serious’. SNCF said many fibre-optic cables by the side of the track which carry signalling data had been damaged by the fires. Police with Olympics duties are reported to have been diverted to some major stations in Paris to help deal with crowds of frustrated travellers. Some soldiers have also been seen on stations.