"Russian Aerospace Forces' military transport planes delivered 15 tonnes of food to the Hmeymim airbase for the formation of the next humanitarian aid convoy," the reconciliation center said in an update published on the Russian Defense Ministry's website.
On Wednesday, the Russian military helped the Syrian government to deliver 28 tonnes of food supplies to the Syrian city of Deir ez-Zor besieged by the Nusra Front and Islamic State groups, outlawed in a number of countries worldwide including Russia.
Syria has been mired in civil war since 2011, with government forces loyal to Syrian President Bashar Assad fighting numerous opposition factions and extremist groups.
The ceasefire in Syria worked out by Russia and the United States, took effect on February 27 to facilitate humanitarian access to all besieged areas in the country, among other purposes.