Multiple people were reported injured on Sunday when a two-story house collapsed in Austin, Texas, after witnesses reported hearing a huge explosion, authorities said. The two-story house collapsed in northwest Austin around 11: 25 a.m. local time, according to the Austin Fire Department." A two-story house sustained damage from an unknown event that caused the house to collapse," fire officials said in a social media post. Firefighters extricated three people from the heavily damaged home and c