An 80-year-old woman has died after being hit by a tear gas canister at her window during Saturday's fuel protests in the French city of Marseille, reports the BBC.
The woman, who lived in an apartment near to where the protests were taking place, was hit in the face while closing the shutters.
Protests over fuel tax have grown into general anger at higher living costs.
The woman was taken to hospital, but died during an operation after suffering shock, local media report.
Three other people have been killed in the protests since demonstrations started more than two weeks ago, police said on Sunday.
France's interior ministry says about 136,000 people took part in the protests nationwide on Sunday, showing widespread support for the movement known as the "gilets jaunes" (yellow vests), who complain about a sharp increase in fuel taxes.