At least six children have been killed, and a further 23 injured, after a school bus crashed, in the US state of Tennessee.
At least 13 people have been killed, and a further 20 wounded, following a mass killing, by a lone gunman, at a college in southern Oregon, United States.
The suspect behind a fatal shooting of four US military personnel, at an army recruitment centre in Tennessee, has been identified by law enforcement.
At least four people, all military service members, have been killed, and a further three injured, following a shooting at a military recruiting centre in Chattanooga, Tennessee.
There have been five reported casualties, one police officer and four soldiers, in a shooting in Chattanooga, Tennessee, while a reported shooting in Bradley County has been debunked.
A string of shootings have been reported across the eastern city of Chattanooga, in Tennessee, with at least one police officer reportedly injured in the attacks.