French jihadist Fabien Clain, who has voiced a record that claims the 2015 Paris attack for the Islamic State group, has been reported killed in Syria.
Security sources told French media an air strike on Wednesday killed Clain in Baghuz, the last pocket being handled by IS.
The US coalition says that the US is trying to verify reports.
Clain is referred to as the French voice of the IS after the 2015 attacks that left 130 people.
- The attack on Paris: What happened at night
What is known about the air strike on Wednesday?
It takes place overnight in a coalition led by the US, sources of media security said in France.
They said Brother and Clain's fellow
Florence's Minister of Defense, Florence Parly tweeted (in French), that it was "possible" to kill Fabien Clain.
Fabien The belief is believed to have gone to Syria in 2015.
Nearly 2,000 French citizens fought for IS in Syria and Iraq since 2014, the French government believes.
How close is Baghuz getting?
About 300 IS fighters are thought to have holed up in and around
In recent days, civilians have been evacuated from the village.
The alliance of US-backed Syrian Democratic Forces (SDF) says they are awaiting their removal before launching offensives against
Those removed are witnessed after being taken to camps, the SDF says.
The downfall of Baghuz is important – but experts warn the group's pull endure ideology.
At its height, five years ago, IS controlled the 88,000 sq km (34,000 sq mile) of territories extending from western Syria to eastern Iraq.