Five dead and dozens injured in tornadoes that tore through Iowa, say officials

The twister that hit the city of Greenfield was rated at least an EF-3 by the National Weather Service in the US (Charlie Neibergall/AP)

Four people died and nearly three dozen were injured when a tornado hit a small city in Iowa, US officials said, while a fifth person was killed elsewhere.

The twister that tore through Greenfield on Tuesday was rated at least an EF-3 by the country’s National Weather Service and was so destructive that it took authorities more than a day to account for the area’s residents.