Five Dallas police officers were shot and killed at a protest in the city that took place following the death of two black men who were killed by police in separate incidents in Louisiana and Minnesota.
Obama condemned the "vicious, calculated and despicable attack on law enforcement" in Dallas. He added that the police officers were "targeted" by multiple suspects.
He added that US citizens were "horrified" by the shooting, for which there was no justification. Obama said the FBI was in touch with the Dallas police over the attack.
"The federal government will provide whatever assistance Dallas may need as it deals with this tremendous tragedy," Obama said.
Police believe that the Dallas shooting of law enforcement officers was carried out by at least four people working together.
Currently, Dallas police are carrying out an extensive search of the downtown area of the city after a suspect in the shooting that took place earlier in the day told law enforcement there were bombs planted in the area.
