Heavy snowfall across large swathes of Japan has killed 17 and injured more than 90 people and left hundreds of homes without power, disaster management officials said . Heavy winter fronts have brought heavy snowfall to northern regions since last week, causing hundreds of vehicles to stall on highways, delaying delivery services and causing 11 deaths. Heavy snow over the Christmas weekend brought the death toll to 17 and the number of injured to 93 by Monday morning, according to the Fire and Disaster Management Agency. sliding off rooftops. Municipal authorities in snow-affected regions have urged residents to be careful while clearing snow and not work alone. The Disaster Management Agency said a woman in her 70s was found dead under a thick pile of snow on her roof that suddenly hit her in Nagai City, Yamagata Prefecture, about 300 kilometers (180 miles) north of Tokyo, where snow accumulated above 80 degrees. centimeters (2.6 feet) on Saturday.