Russia may start bombing ISIS targets in Syria if the US does not join forces with them, it has been reported.

President Vladimir Putin is a staunch ally of the regime of President Bashar al-Assad and Russian fighter aircraft have been spotted in the war-torn nation.

Now Bloomberg reports that Putin wants to work with the US government and its allies to agree to coordinate their campaign against Islamic State militants with Russia, Iran and the Syrian army.

But many of the US-led coalition oppose the tyrannical rule of the Syrian regime.

One source told Bloomberg that Putin wanted to work with the US, while another was frustrated with America's failure to respond and was ready to act alone in Syria if necessary.

Some Syrian media have reported that Russian jets are already attacking ISIS positions around the besieged Kwers military airport in Aleppo.

Yesterday, satellite image emerged of Russian jet fighters at a Syrian airfield.

The image, taken by Geonorth's Pleiades satellite, shows four Russian Air Force Su-30SM Flankers and at least 12 Su-25 Frogfoot attack planes, reports the Aviationist .

According to the most recent reports, as many as 28 Russian planes have already been deployed to Syria.

US Secretary of State John Kerry today said Russia's military support for al-Assad could raise the risk of confrontation with coalition forces fighting Islamic State there.

(irishmirror.ie)