U.S. stocks were extending their previous losses in the final hour of trading on Tuesday. The Dow Jones Industrial Average was falling over 300 points, or 0.8%, to trade near its session low of 42,725.40.
The S&P 500 was losing 0.8%, weighed down by stocks in the energy, healthcare and information-technology sectors.
The Nasdaq Composite was tumbling 1.2% to trade at around 18,280, according to FactSet data.