Iowa shootings: gunman suspected of killing six relatives then himself

Police say four found dead in a home in Muscatine and two were shot elsewhere in apparent domestic-related dispute'

A mass shooting in Iowa on Monday, in which six people were killed by a man who then took his own life, is being investigated as a so-called family annihilation" in which the murderer and victims are closely related.

Police in Muscatine, about 50 miles (80km) south-east of Cedar Rapids, said 52-year-old Ryan Willis McFarland fatally shot four people at a home in the city, then killed himself on a riverfront trail as officers spoke to him.