Witnesses say masked attackers used guns and explosives during the Friday’s assault.
At least eight assailants and eight security personnel were killed, the military said. Officials also said that more than 80 people, including civilians, were wounded.
The national police force confirmed that Friday’s attacks occurred in an area near the prime minister’s office and the United Nations roundabout. An attack also occurred at the French embassy, officials said.
The embassy came under attack around 10:15 GMT. A military police officer and four attackers were killed, French Foreign Minister Jean-Yves Le Drian said in a televised address.
The second attack occurred when fighters opened fire on the army headquarters on the other side of town. Explosions could be heard, according to witnesses, and smoke was seen above some of the buildings.
No group has claimed responsibility for the attacks.