Photos: Minneapolis building explodes; firefighters work in brutal conditions

Iced building
1 Iced building 
Explosion debris
2 Explosion debris 
Women watch firefighters
3 Women watch firefighters 
Minneapolis firefighters
4 Minneapolis firefighters 
Firefighters at work
5 Firefighters at work 
Hodges, Fruetel and Rybak
6 Hodges, Fruetel and Rybak 
Firefighters in Cedar Riverside
7 Firefighters in Cedar Riverside 
Ice-encrusted building
8 Ice-encrusted building