Russian President Vladimir Putin hosts Israeli Prime Minister Benjamin Netanyahu for talks Tuesday focused on the situation in Syria.
Israel and Western powers are concerned about potential Russian sales of advanced anti-aircraft weapons to Syria, which would complicate any possible airstrikes against President Bashar al-Assad's forces.
Russian Foreign Minister Sergei Lavrov said last week his government is completing arms sales to Syria under existing contracts, but did not say if advanced S-300 missile batteries were included.
The talks come as efforts continue to arrange an international peace conference on Syria, which Russia and the United States proposed last week.