Russian soldier's 'selfies' show he was inside Ukraine

A Russian soldier may have inadvertenly given up secret military information about his unit being on the wrong side of the border between Russia and Ukraine by posting "selfies" on the popular social network Instagram.

The sergeant in the Russian Army's signal corps, Alexander Sotkin, may not have realized the photos he posted were geotagged - a process that uses the GPS built into a camera or smartphone to add the photos location to metadata embedded in the picture.

While most of his pictures show he spends most of his time on the Russian side of the border, at least two indicate he was well within Ukrainian territory, in an area controlled by pro-Russian separatists rebelling against the Ukrainian government.

The photos have created an embarrassing international incident for Moscow, which continues to face a lot of heat over the shooting down of a Malaysian Airlines Boeing 777 believed to have been brought down by a Russian-made missile fired by separatists.

Tech experts say it is possible that Sotkin's phone may have pinged towers on the Ukrainian side of the border, though he never actually crossed over.

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