US stock futures fell along with shares in European companies exposed to Russia, as the ruble and crude oil slid to new record lows on Tuesday.
The Russian ruble lost over 20 percent against hard currencies on Tuesday. At its worst the ruble plummeted to 75 against the US dollar, and traded at almost 100 to the euro on the Moscow Exchange.
Brent crude fell below $59 a barrel for the first time since May 2009, losing 4 percent as it hit a low of $58.50. US WTI crude was down 3 percent at $54.21 after plunging to $53.80.