Police in southern Germany are warning of dangerous conditions on parts of frozen Lake Constance, after three people fell through the ice earlier this week.
All three were rescued after spending around twenty minutes in icy water and were treated for hypothermia.
Authorities say changing weather, wind and snow are making the ice increasingly unstable, and urge people to stay close to the shore.
The police say anyone heading out on the ice do so at their own risk.
Too late to save the ski season
No major breakthough's expected at Davos
Gruyère survives US sanctions
Paléo wins major award
Push to fund night trains by cities
One inequality less in Swiss football.
