Russian airstrikes on positions of the al-Qaida-linked Nusra Front in northwestern Syria reportedly killed 120 rebels.

The Russian warplanes attacked a Nusra Front training camp in the Sheikh Youssef area of Idlib province and destroyed observation points, drones, and missile launchers, state news agency SANA cited Russian military sources in Syria as saying, Xinhua news agency reported.

The Syrian Observatory for Human Rights, a UK-based war monitor, also reported the Russian airstrikes in Idlib, saying the Russian warplanes carried out 14 airstrikes on Thursday and fired one surface-to-surface missile on rebel-held areas in the province.

Occupied by a number of rebel groups, including ultra-radical ones like Nusra Front, Idlib has emerged as the last major rebel stronghold in Syria.