Train traffic has been interrupted on three rail routes from Grenoble "at least until Friday noon" due to the presence of trees fallen on the tracks or threatening to do so, said Thursday a spokesman for SNCF to AFP.
The axes concerned are Grenoble-Lyon, Grenoble-Valence and Grenoble-Veynes. It will however be possible to go from Grenoble to Lyon but by "a diversion" passing through Chambéry in Savoie and Ambérieu in the Ain, said the same source.
The Drôme, Isère and Ardèche cross Thursday an important snowy phenomenon. A 63-year-old driver died Thursday evening in the town of Roche, northern Isère, after the fall of a tree.
More than 140,000 homes are also without electricity.