The men's 15km mass-start biathlon at the Winter Games has been postponed to Tuesday due to poor visibility after heavy fog descended on the Laura centre for a second day, organisers said.
The race was originally scheduled for Sunday evening but organisers pushed it back to Monday morning and then Monday afternoon.
The men's snowboardcross has been pushed back to Tuesday as well because of fog.
Biathlon combines cross country skiing and rifle shooting. Athletes have to complete a distance over skis and stop at a shooting range two or four times depending on the disciplines.
As thick fog covered the mountains the view of the targets - 50 metres from where athletes stand or lie - was completely wiped out on Monday.