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Police investigating Tennessee attacker after four Marines shot dead
The FBI has said it has no indication that Abdulazeez was linked with any international terrorist organisations or that others were involved.
Gunman Mohammad Youssuf Abdulazeez at left and damage caused by the shooting on nearby property, at right
US police have been searching the house of a 24-year-old man who was killed after shooting dead four Marines in Chattanooga, Tennessee.
The attacks at two US Navy sites on Thursday morning were being investigated as an "act of domestic terrorism", said a district lawyer. The FBI has said it has no indication of what Mohammad Youssuf Abdulazeez's motive was at this stage.
A female sailor remains in a serious condition in hospital. Two others were also injured.
Police have sealed off the area around the house in which the gunman lived as they attempt to piece together what led to the attacks.
The FBI has said it has no indication that Abdulazeez was linked with any international terrorist organisations or that others were involved.
FBI agent Ed Reinhold told a news conference the gunman initially fired from inside his Ford Mustang at about 10:45 local time at a US Navy recruitment centre in the east of the city.
He then drove to a US Navy reserve centre about 10 km away where he got out of his car before fatally shooting the Marines. He was shot dead on Amnicola Highway.
