https://apnews.com/b8e8ad3f45164fed9ca3bc043d72d615

The Dow Jones Industrial Average tumbled more than 500 points Tuesday amid a broad sell-off on Wall Street as the U.S. and China inched closer to a potential escalation in their costly trade war.

The U.S. was set to impose higher tariffs on China on Friday, a day after representatives from both nations were scheduled to resume trade talks Thursday in Washington.