He specifically pointed to the fact that "the warplane posed no threat to Turkey's security and showed no hostile intentions."
Referring to Russia's 2008 sanctions against Georgia and its ongoing sanctions on Ukraine, Pekin suggested that Russia's response to the downing of the Su-24 will be very tough.
"Apart from sanctions, Russia also deployed its Iskander missile systems in Kaliningrad in retaliation against NATO's increasing activities. You have to understand that Russia has a very strong potential in this field," Pekin said.
He also suggested that the incident with the Russian warplane could further add to Turkey losing its clout in the region.
"Turkey is losing its position in the region following a recent agreement on the military bases. The country is distancing itself from Iran, Syria and Iraq and increasingly drawn into the sphere of influence of Washington's policy," he pointed out.
On Tuesday, a Russian Su-24 was fired upon in Syria, 2.5 miles away from the Turkish border, after it was hit with an air-to-air missile launched from a Turkish F-16 jet.