Witnesses said protesters went home to gather weapons and later returned to the site of the attack, suggesting more bloodshed was possible. The country's grand Mufti called on protesters to end their demonstrations and said he held the government responsible for ending militias' presence in the capital.
The march in the capital Tripoli by thousands of protesters was the biggest show of public anger at militias in months. Since the 2011 fall of dictator Muammar Gaddafi, hundreds of militias, many of them on government payroll, have run out of control in Libya, carving out zones of power, defying state authority and launching violent attacks.
When they neared the building, militiamen in civilian clothes and military uniforms came out of the headquarters, opening fire at the protesters with automatic weapons, RPGs and anti-aircraft guns. Footage aired on the privately owned al-Nabaa television network showed protesters running from gunfire while carrying others covered in blood.
Militiamen also beat a reporter and a photographer before protesters ultimately rescued them. After the attack, some protesters marched back to the mosque while others remained close the militias' headquarters. Many demanded the head of Tripoli city council to use force to expel the armed men.