The 100th Tour De France will begin today with 212km stage one from Porto-Vecchio to Bastia in Corsica.
Last year's runner-up to Sir Bradley Wiggins, Chris Froome, will lead Team Sky and is favourite to become the second British winner.
Wiggins is unable to compete this year due to illness and injury.
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Cloud and outbreaks of rain will ease away eastwards during the morning, clearing the east coast around midday with sunny spells developing.
Police and emergency services are attending the scene.
Rebel-held east remains at risk while the pumping station supplying the western part of the city is once again in operation.