Live updates: Dallas protest shooting
Five police officers have been killed after they were shot in Dallas during a Black Lives Matter protest.
Here's what we know so far:
- Five police officers died and seven were wounded
- The suspect, Micah Johnson, was killed in a stand-off with police
- He allegedly said he wanted to kill white police officers
- The atrocity follows the fatal police shootings of two black men
- Bomb-making materials, guns and a bullet proof vest were found at Johnson's home
- Barack Obama condemned the attack as "vicious, calculated and despicable"
- The US president will visit the scene next week
- Dallas Police 'received a new threat' against law enforcement on Saturday
