The leading U.S. stock indexes tumbled Wednesday as President Trump’s delay on some new Chinese tariffs failed to soothe investors worried that the administration’s trade war will drive the country into a recession.

The blue-chip Dow Jones industrial average sank 800 points, or 3.1%, to 25,479, while the broader S&P 500 dropped 2.9% as a bond-market recession gauge signaled rising risk of a downturn. The tech-heavy Nasdaq fell 3%.