Russia defended its supply of military equipment to Syria on Wednesday.
Foreign Ministry spokeswoman Maria Zakharova said such move complies with existing bilateral contracts as well as international law.
She added there were Russian military specialists in Syria instructing local troops in using the supplied armaments.
According to Zakharova, Russia might consider extra “counter-terrorism aid” to Syria on the basis of international law.
Earlier in the day, Deputy Foreign Minister Sergei Ryabkov said that Russia would continue sending humanitarian aid to Syria using alternative flight routes.
He made the remarks in response to a recent move by the Greek government, which closed its air space for Russian humanitarian cargo flights heading for Syria.