(CNBC) U.S. stocks closed mostly lower Friday following some renewed concerns of geopolitical tension.
Reuters reported in late morning trade that a Chinese Navy warship has seized an underwater drone deployed by an American oceanographic vessel in international waters in the South China Sea, triggering a formal diplomatic protest from the United States and a demand for its return, a U.S. defense official told the newswire.
"Traders are going to want to see if this escalates at all from the White House and see how this unfolds over the weekend," said Quincy Krosby, market strategist at Prudential Financial. "It could be one of the things that dissipates in the news but it could be one of the headlines that gains momentum into next week."
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