A county spokeswoman said a gas explosion at a jail in Pensacola, Florida, has injured 100 to 150 inmates and corrections officers, AP reported. Kathleen Castro says the explosion happened around 11 p.m. Wednesday in Escambia County jail's booking facility and caused the building to partially collapse. She says about 600 inmates were in the building at the time. Castro didn't know if flooding in the area was a factor.