iPath S&P 500 VIX Short-Term Futures ETN (VXX)

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Looks like Russian invasion started, apparently Putin taking advantage of Al Queda over run of Iraq....

Ukrainian President Petro Poroshenko has told President Vladimir Putin that reports of Russian tanks moving into Ukrainian territory are unacceptable.

Ukraine's interior minister said earlier that three tanks had entered rebel areas of the east, and fighting was under way.

Arsen Avakov said that the tanks entered Ukraine along with other armour through a border checkpoint controlled by rebels in the Luhansk region.

Russia denied the report.

It said it was "another fake piece of information".

Moscow has accused President Poroshenko of not delivering on his earlier pledge to stop fighting in the east. It wants an investigation into allegations that Ukrainian forces used banned incendiary bombs against civilians.