Israel launched a pre-dawn airstrike on a military arms depot near the Damascus International Airport in Syria, the Voice of America reports.

The weapons supply belonged to Hezbollah, which has received stockpiles of missiles and munitions from Iran over the last several years, spiking recently as Hezbollah has been an active participant in the Syrian Civil War. The weapons have been delivered secretly, disguised as cargo aboard commercial airline flights.

Russia has called on Israel to show restraint following these latest strikes. “All countries need to refrain from any kind of actions that lead to an increase in tension in this already restive region,” said Dmitry Peskov, a spokesman for the Kremlin.