When in the building, the men killed a policeman on guard and a member of staff. The attackers then moved to the second-floor, where the meeting was taking place then they shot and killed 8 journalists and a guest who was invited to the meeting.
Witnesses said they heard the gunmen shouting "We have avenged the Prophet Muhammad" and "God is Greatest" in Arabic ("Allahu Akbar").
Police quickly were in the scene when the men were trying to leaving the building. A police car was used to block the exit way of the men. After that, police opened fire, shot the marked men.
A police was shot dead when trying to stop the gunman as he lay wounded on the pavement.
The men, with the help of an accomplice, go away by a black car, police said that the car is model Citroen C3, they run after it quickly.