U.S. stocks plunged at the opening of equity markets amid worries over the escalation in U.S.-China trade war.

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Stocks turned lower, giving up most of Tuesday’s gains after investors moved money to safe-havens such as gold and U.S. government bonds.

The 10-year Treasury yield tumbled to a fresh low of 1.622 percent, the lowest since October 4, 2016.

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