Prosecutors said the group had a military-type structure, with one member being a retired major general.
Russia appears to back Trump’s stance on Ukraine as tensions between Kyiv and Washington grow.
The Russian Foreign Ministry said that in order for true peace to last, Kyiv would need to "denazify" and adopt Russian culture.
The blast is attributed to an alleged assassination attempt of a a pro-Russian paramilitary leader from eastern Ukraine.
As rebel forces seize Damascus, the collapse of the Assad regime threatens Russia’s strategic foothold in the Middle East, signaling a profound shift in the region’s balance of power.
Asked about the future of the bases, Kremlin spokesman Dmitry Peskov said: "It's premature to talk about it yet."
Despite Russia allegedly helping Assad, Syrian opposition forces have guaranteed the safety of Russian military bases and diplomatic missions.
Experts question if Russia's fractured opposition can challenge the Kremlin effectively.
Russia cautiously optimistic about Trump; hopes for reduced US aid to Ukraine.
Alphabet, Google's parent company, has a market value of approximately $2 trillion.