( CNN ) -- A body has been discovered in the charred remains of a three-story apartment building in Minneapolis where an explosion and fire injured at least 14 people , fire officials said Thursday . Firefighters discovered the body , which has not been publicly identified , while removing debris from Wednesday 's fire , officials said . The body was turned over to the Hennepin County Medical Examiner 's Office , they said . `` The cause of the fire is still under investigation . While a gas leak could be one potential cause , it could be weeks until a cause is determined and may ultimately be undetermined , '' according to a statement released by the Minneapolis Fire Department . Most of the injuries suffered were burns or came from falls or jumps from windows , Robert Ball , a spokesman for Hennepin County Emergency Medical Services , said Wednesday . Officials do n't know whether people jumped out , fell or were pushed out by the explosion . The explosion was reported about 8:15 a.m. , and the building was soon engulfed in flames , officials said . Photos : Building ices over as firefighters battle blaze . CNN 's Fredricka Whitfield and Carma Hassan contributed to this report .
Firefighters discover body while removing debris from an apartment fire , officials say . The body has been turned over to Hennepin County Medical Examiner 's Office . At least 14 people are injured in the fire that began Wednesday .