Three climbers were killed and four others injured in a fall Sunday while scaling the southern ridge of Mount Amida in Nagano Prefecture, the police said.
The incident came to light after another climber contacted the police around 8:35 a.m.
The seven belonged to the same group from Kansai, according to the authorities. At the time of the accident, they were linked together by a safety rope and making their way toward the peak of the 2,805-meter mountain.