DES MOINES, Iowa (AP) — Two firefighters have been injured battling a house blaze in Des Moines. Firetrucks were dispatched to the house around 5:30 a.m. Saturday. Fire Lt. Chris Clement says the injuries occurred when one firefighter fell through a weakened floor into the house basement, landing atop another firefighter. Both were taken to a hospital and were released after treatment. Their names haven’t been released. The fire cause is being investigated.