The repeated detachments of the glacier above the village evacuated from Blatten continue to place a serious threat.
Experts warn that other collapses could trigger debris flows or obstruct the Lonza river.
The authorities declared a “special situation” on Wednesday and urged residents to avoid the area.
Emergency teams plan to install additional surveillance systems in the coming days to better assess risks.
Although some officials remain optimistic, there is still no clear calendar for the return of the village safely.