With the G7 summit approaching in nearby Évian, attention is turning to Geneva and the border.
French authorities say there are currently no plans to close crossings, but checks will be reinforced - raising the risk of delays for thousands of cross-border workers, including staff at the Geneva University Hospital.
Lake transport will also be disrupted, with ferry routes diverted and access restricted during the summit period.
Officials stress coordination with Swiss authorities is ongoing - but key details on security and demonstrations are still to come.
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