Story highlights Russia denies claims its equipment was hit

Satellite imagery suggests extensive damage to military equipment

(CNN) Russia is denying reports that ISIS struck and destroyed a significant amount of its military equipment at an important military base in Syria.

A media outlet affiliated with the terror group claimed on May 15 that ISIS hit the strategic T4 base in central Syria between the cities of Homs and Palmyra.

The global intelligence firm Stratfor also released a series of images that purport to show damaged aircraft and supply depots at the base, which the group calls one of the "most important" in the country.

"The attack, and the considerable losses on the Russian side, stress the continued threat to supply lines for Russia and regime forces," Stratfor said.

Stratfor says the images show the damage incurred was likely not accidental.

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