Around 40 Howitzer rounds were fired on 10 Daesh targets north of Aleppo, the source said, adding that targets included bases, weaponry and truck-mounted rocket launchers.
The shots were fired between 2 p.m. [12.00GMT] and 3 p.m. [13.00GMT] Sunday, it said.
The international anti-Daesh coalition was informed about the strikes in advance, it added.
Anadolu Agency