Updated numbers
Shooters apparently firing semi-automatic weapons hit at least 11 police officers in Dallas tonight at an otherwise calm protest over police shootings of unarmed suspects in other cities. At least five of the officers have been killed; six others are at hospitals.
The crowd of marchers scattered as the shots rang out in downtown Dallas. Videos posted on social media capture a frantic scene as protesters tried to get away and police took cover and returned fire.
There are reports of police engaging in gunfights and at least three suspects in custody, with at least one other suspect at large. A suspicious package was said to be nearby at one of the arrest scenes.
At least four of the officers who were shot work for the Dallas Area Rapid Transit agency.