New York - US stock index futures tumbled on Monday, alongside other risk assets, as Ukraine and Russia mobilised for war with Russian President Vladimir Putin declaring he had the right to invade his neighbour.
Yatseniuk leads a pro-Western government that took power when former president Viktor Yanukovich, a Russian ally, fled on February 21 after three months of street protests against his rule.
The United States threatened to isolate Russia economically after Putin's declaration.
The dollar-denominated RTS stock index tumbled 14 percent.
Dow Jones industrial average futures fell 150 points and Nasdaq 100 futures lost 40 points.
US-traded AngloGold Ashanti shares gained 5.1 percent in premarket trading.
Inflation and consumption data is due at 8:30 a.m. EST (15:30 SA time), while construction spending in January and the manufacturing ISM for February are expected at 10:00 a.m. (17:00 SA time).
Markit's final gauge of manufacturing for February is out at 8:58 a.m. (15:58 SA time). - Reuters