Late Thursday night, a car accident in Doura led to a big fight between Lebanese and Syrian young people.
Some used sharp objects, and there were rumors of a weapon. Many Syrians hid in their workplaces.
About 200 Lebanese youth gathered outside, started a fire, and wanted the Syrians to leave.
The fight spread to other areas like Rmeil and Achrafieh. Witnesses say some motorcycles were burned in Doha Aramoun.
The army stepped in and arrested those causing trouble.
Related: Two Syrians Arrested After Major Weapons Discovered