Two days of torrential rain have left large parts of northwestern Switzerland and the central plateau region under water.
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| ©Keystone
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| The River Aare flooded parts of Olten in northern Switzerland.
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By Thursday evening the levels of most affected lakes and rivers appeared to have peaked, but the situation in many areas, particularly along the River Aare, remained critical.
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| ©Keystone
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| The River Sarneraa burst its banks at Sarnen in canton Obwalden.
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The storms, the worst since the severe floods of 2005, led to chaos on the roads, with many closed as a result of flooding or landslides. Rail traffic was also hit.
