REUTERS-- Nusra Front severed ties with al Qaeda last year and rebranded to head the Hayat Tahrir al-Sham alliance.
Russia said on Wednesday it had critically injured a leader of the Tahrir al-Sham militant group, Abu Mohamad al-Golani, with an air strike in Syria that also killed 12 of his field commanders.
Golani is now in a coma, Russian news agencies cited Russia's defence ministry as saying on Thursday.