Approximately 45 people, including a 10-year-old child, will spend the night at an altitude of over 3,000 metres after their Mont Blanc cable cars were stranded, according to French news agency AFP.
Of the 110 people initially stranded Thursday afternoon, approximately 65 were rescued by helicopters in difficult circumstances, local authorities told AFP.
Authorities confirmed to dpa that occupants were being rescued by helicopter and taken to the Italian side of the mountain.
Rescue operations are expected to resume early Friday morning.
According to AFP the incident occurred when cables became entangled.
Mont Blanc stands at the border of France and Italy. At 4,810 metres, it is the highest mountain in the alps.