Dozens of fighters have been killed in clashes between two jihadist factions in northern Syria, reports say.
The battles involved Tahrir al-Sham, formerly an al-Qaeda affiliate, and Jund al-Aqsa, regarded as close to so-called Islamic State (IS).
UK-based Syrian Observatory for Human Rights (SOHR) said the fighting was a “war for influence” in Idlib province.
Inter-factional fighting has beleaguered insurgents since early on in the Syria war.
Last month, a hardline Islamist group, Ahrar al-Sham, was also involved in days of clashes in Idlib with Jabhat Fateh al-Sham (JFS), which rebranded itself as Tahrir al-Sham, an alliance of jihadist groups, at the end of January.