The French action follows several rounds of US strikes against Islamic State targets in the weeks since rebels ousted Syrian president Bashar al-Assad from power.
France said Tuesday it had carried out airstrikes against Islamic State militant positions in Syria, reports Voice of America.
French defence minister Sébastien Lecornu said in a post on X that the strikes happened Sunday, but did not specify where in Syria they took place.
The French action follows several rounds of U.S. strikes against Islamic State targets in the weeks since rebels ousted Syrian President Bashar al-Assad from power.
Islamic State militants took control of large areas of eastern Syria and western Iraq in 2014, drawing an international response that included a U.S.-led coalition aimed at defeating the group.
The militants have lost much of the territory they once held, but they are still present in Syria.