Nikolai Levichev, the Deputy Speaker of Russia's State Duma, the lower house of Russia's parliament, has called on Russia's air transport chief Alexander Neradko, to consider a complete cessation of air links between Russia and Turkey in response to the high risk of terror theats for Russian planes.
Levichev is from the center-left Fair Russia party.
His call comes after IS claimed responsibility for the downing of a Russian passenger jet in Sinai last month, as well as after today's downing of a Russian war plane in Syria, apparently by the Turkish military.
TASS is also reporting that the Kremlin does not know whether Russian Foreign Minister Sergey Lavrov's planned visit to Istanbul tomorrow will be amended.
When journalists asked Putin's press secretary Dmitry Peskov about whether the meeting would be changed, he told them to "telephone the Foreign Ministry."
Putin's press secretary, Dmitry Peskov, says it is too early to talk about any possible consequences for Russian-Turkish relations as a result of today's shooting down of a Russian jet.
"It would be wrong to make any sort of assessments, assumptions and draw any conclusions until we have a complete picture," Peskov told journalists, according to TASS.
"We just need to be patient, this is a very serious incident, but again, without the full information it is not possible to say anything and it would be wrong [to do so]."
Turkish journalist Abdullah Bozkurt asks an important question: why did Turkey shoot down the Su-24 today when it has previously ignored other reported incursions into its airspace?
Both the Russian and Turkish militaries have tweeted images that they say prove where the Russian Su-24 jet was before it was shot down.
Turkey has released what it says is a radar print showing the Russian jet before it was shot down, indicating it was in Turkish air space.
Russia's Ministry of Defense has released a satellite picture that it claims shows the Su-24 was in Syrian airspace.
Reuters say a Syrian rebel group has sent them a video that purports to show one of the Russian pilots from the downed Su-24 jet immobile on the ground.
The group's leader has claimed to Reuters that the pilot is dead.
RT is running a piece with a video which it says shows a dead Russian pilot surrounded by rebels.
According to Reuters, the video was sent by a rebel group operating in the northwestern area of Syria, where groups including the Free Syrian Army are active but Islamic State has no known presence.
Abdullah Bozkurt, a journalist with Turkey's Today's Zaman newspaper, says that local Turkmen sources in Syria are saying that both the Russian pilots from the downed Su-24 plane have been captured.
One is injured and the other is in good health, the sources say. The claims have not been verified.
NATO is set to make a statement about the downing of the Russian Su-24 jet in Syria, the pro-Kremlin RIA Novosti is reporting, citing a NATO source.