One person died and at least three others were wounded after a shooting in an office building in the US city of Atlanta. Three of the injured were taken to hospital for treatment and a fourth person was pronounced dead at the scene.

"No suspect is in custody," said the police, who published several photos of the alleged assailant, taken from the camera of an elevator. According to CNN, the perpetrator has been identified and his mother is collaborating with the police to try to talk to him and prevent him from continuing to shoot.