Photo taken on Sept. 22, 2013 shows the Russian embassy to Syria in Damascus, capital of Syria. (Xinhua/Zhang NaiJie)

MOSCOW, Aug. 2 (Xinhua) -- Russia says terrorists attacked its embassy in the Syrian capital of Damascus with mortars on Wednesday, leaving no casualties.

Two shells fell in the embassy and two more landed near the compound, resulting in slight material damage, the Russian Foreign Ministry said in a statement.

"We strongly condemn the terrorist attacks against the Russian diplomatic mission in Damascus," it said, adding that Russia's principled and consistent line to carry out an "uncompromising" fight against "terrorists" in Syria will continue.

The Russian embassy in Damascus has been shelled several times since Moscow started to participate in anti-terrorism operations in Syria in September 2015.

Russia has withdrawn most of its troops from the war-torn country. However, it still supports anti-terrorism and humanitarian missions there.