June 15 (Reuters) - U.S. stock indexes opened lower on Friday after the United States announced tariffs on $50 billion worth of Chinese goods, spurring a promise of immediate and equivalent retaliation from Beijing.
The Dow Jones Industrial Average fell 58.60 points, or 0.23 percent, at the open to 25,116.71. The S&P 500 opened lower by 4.71 points, or 0.17 percent, at 2,777.78. The Nasdaq Composite dropped 36.01 points, or 0.46 percent, to 7,725.03 at the opening bell. (Reporting by Sruthi Shankar in Bengaluru; Editing by Anil D'Silva)