The leader of a militant Syrian faction that had pledged allegiance to ISIS was killed Sunday in a suicide attack by rival jihadists, a monitoring group said.
"Abu Ali al-Baridi, head of Al-Yarmuk Martyrs Brigade and nicknamed 'The Uncle', was killed in a suicide attack by Al-Nusra Front," Al-Qaeda's Syria affiliate, the Syrian Observatory for Human Rights said.
AFP reports that Observatory head Rami Abdel Rahman said Baridi and two of his group's top leaders were killed in the town of Jamlah in the southern Syrian province of Daraa bordering Jordan.
Baridi's faction pledged allegiance to ISIS in 2014 and operated in the south of the country, Abdel Rahman said.
Al-Nusra's official Twitter account confirmed it had attacked Baridi, calling it a "heroic infiltration operation".