Residents of the Libyan capital have launched a general strike over the 43 people killed when militiamen fired on a march calling for the disbanding of armed groups.

The streets of Tripoli were deserted Sunday, with the vast majority of the city's businesses and schools closed. Bakeries, pharmacies and gas stations remained open. Al-Sadat al-Badri, who is head of Tripoli's city council, says the strike is to last three days.

Armed residents set up check-points throughout the city to protect their neighborhoods for fear of renewed violence.

Friday's bloodshed left Tripoli on edge. Four people also died Saturday in fighting between militias.

Since the fall of dictator Moammar Gadhafi in 2011, hundreds of militias have defied state authority and sometimes committed acts of violence.