The snowslide was in a family-ski-area named Nasu Onsen in Tochigi province, Tokyo. As news provided, about 50 middle-school students and teachers were in the area at the time snowslide appeared. 

Rescuer force said they received notification at 9:20 a.m (local time). 

According to The Mainichi, until now 6 people were found but lost their lives, 3 were missing and 3 were injured (2 students and 1 teacher)

Rescue misson is still continuing, authorities try to find missing and injured victims.