Dozens were killed or wounded in Homs just days after rebels pulled out of the city in central Syria under a truce. ISIS claimed responsibility.
The aircraft was not immediately identified, but the incident follows Russian encroachments on several neighbors' territories.
Iran has been fighting to help bolster Syrian President Bashar Assad, but less than 1,000 of its soldiers still remain in the fight, Western officials said.
The incident comes just weeks after Russia allegedly violated Turkish airspace near the Syrian border. This is also not the first time the Russian military has breached Georgian skies.
A recent dispute between Russia and Turkey has shone new light on ISIS' murky, profitable oil trade.
"The Islamic State has seen success beyond the dreams of other terrorist groups that now appear conventional and even old-fashioned, such as Al-Qaeda,” a recent report says.
Two years after Ukraine's revolution, the next political generation is working to fight graft by going online because "you can't bribe a computer."
U.S. Vice President Joe Biden said that Ukraine must combat corruption amid the Eastern European country's ongoing territorial battle with Russia.
The 24-page document, obtained by the Guardian, demonstrates that the Islamic State group has set out to build a viable state in the territory it holds in Iraq and Syria.
British lawmakers voted Wednesday to join the U.S.-led aerial campaign against the ISIS and other militant groups in Syria.
However, the U.S. has rejected Russia's claim that Turkey's government is benefiting from oil smuggled out of Syria by the Islamic State group.
Tensions in the region -- especially between Turkey and Russia -- have reached a new high in recent weeks.
An Iranian official reaffirmed the alliance with Russia for Assad and against ISIS.
With numerous countries conducting airstrikes over Syria, coordination is needed more than ever.
Russian President Vladimir Putin continued his country's war of words with Turkey in the wake of last month's downing of a Russian bomber by Ankara.
Russian authorities said a power bridge would restore some electricity to Crimea by Dec. 20 as Ukrainian activists vow to completely isolate the annexed territory.
An explosion in Istanbul, which may have been a bomb, caused chaos and wounded five people on Tuesday.
Turkish President Recep Tayyip Erdogan denied Putin's accusations, saying he'll leave office if they are proved true.
Russian Prime Minister Dmitry Medvedev ordered his government to draw up measures that would include freezing some joint investment projects and restricting food imports from Turkey.
The Islamic State group has released a new video hailing their supposed successes and taunting world powers to try to defeat them.
“It is the call to glory and adventure that moves these young people to join the Islamic State,” a terrorism expert told the U.N.'s counterterrorism committee.
After a Russian warplane went down near the Syria-Turkey border Tuesday, most state-owned media in Russia stressed that the plane had been flying over Syria, not Turkey.