Stocks are closing lower on Wall Street as investors wait for the next step in the increasingly tense US-Iran confrontation, the AP reports. Oil prices gave up some of their recent gains after a US drone strike killed Iran's top general on Friday. Banks and makers of consumer products took some of the bigger losses. JPMorgan Chase fell 1.7%. The S&P 500 fell 9 points, or 0.3%, to 3,237. The Dow Jones Industrial Average fell 119 points, or 0.4%, to 28,583. The Nasdaq slipped 2 points, less than 0.1%, to 9,068. Bond prices fell. The yield on the 10-year Treasury note rose to 1.83%. (More stock market stories.)