Sept. 21 (UPI) -- The Dow Jones Industrial Average recorded its worst day in about two weeks on Monday amid ongoing concerns about the COVID-19 pandemic.
The blue-chip index fell 509.72 points, or 1.84%, its worst day since Sept. 8, when it fell 2.3%. The S&P 500 marked its fourth straight day of losses for the first time since February as it dropped 1.16% and the Nasdaq Composite notched slight losses, falling 0.13%.