Nelle prime ore di domenica circa due terzi della lingua del ghiacciaio del Trift, sopra Saas-Grund in Vallese, sono crollati ma lo smottamento non ha raggiunto la località dell'alto Vallese. Le circa 200 persone sfollate da sabato hanno potuto tornare a casa.
La strada cantonale è stata riaperta al traffico, ha indicato lo stato maggiore regionale.
Il ghiacciaio è sotto osservazione dall'ottobre del 2014, quando la stessa area era stata chiusa per tre settimane. Dall'inizio di questa settimana i movimenti si sono moltiplicati sulla parte inferiore della struttura. Giovedì sera è stata attivata una sorveglianza radar.
ats/joe.p.
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