Protesters have scaled the Arc de Triomphe in central Paris, as clashes with riot police continued during a third weekend of yellow vest rallies. Police fired tear gas, stun grenades and water cannon on the Champs-Elysees, while masked protesters hurled projectiles and set buildings on fire. At least 110 people were injured, including 17 members of the security forces, and more than 250 arrests were made. Protests over fuel tax have grown into general anger at higher living costs.