AP•GETTY Russia is bombing ISIS targets in Syria

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Over the last three days, Russian jets made 137 sorties in the Syrian Arab Republic and destroyed 448 facilities of terrorist infrastructure Igor Konashenkov

It follows an ISIS affiliate in Egypt claiming responsibility for bringing down the Russian plane over Sinai killing 224 people. Key terrorist group buildings destroyed in the latest round of airstrikes in Syria include one holding missiles. Kremlin defence spokesman Igor Konashenkov said: "Over the last three days, Russian jets made 137 sorties in the Syrian Arab Republic and destroyed 448 facilities of terrorist infrastructure in the provinces of Aleppo, Damascus, Idlib, Latakia, Raqqa, Hama and Homs."

REUTERS Russia has been bombing terrorists in Syria since September

An ISIS munitions warehouse near the Syrian capital, Damascus, which hosted makeshift unguided missiles was just one of the locations destroyed. Mr Konashenkov said: "In the area of Mont Mgar, Damascus Province, Islamic State's warehouse of unguided missiles was destroyed. "That warehouse had regularly supplied militants with unguided missiles that were used to systematically bombard the residential areas of Damascus."

A mortar gun owned by terror organisation Jabhat al-Nusra - the Syrian branch of al-Qaeda - was also destroyed by Russian planes in Latakia province. And more Jabhat al-Nusra positions were destroyed in Hama province, including a repair shop with armoured vehicles inside, while in Idlib, jets levelled what Moscow described as a major command centre.

GETTY IMAGES Russian forces have targeted ISIS and other groups in the last six weeks

GETTY IMAGES Vladimir Putin