All three of the major indices on Wall Street fell on Thursday after the Chinese stock market dropped nearly three-percent to hit a four-year low.
The Dow Jones Industrial Average tumbled by more than three-hundred points, or around one-point-three percent.
The S&P 500 dropped over one-point-four percent, and the Nasdaq fell more than two percent.
This comes after China's Shanghai Composite index reached its lowest level in four years... and investors are worried this might lead to a global economic slowdown.
Analysts are saying the ongoing trade spat between the U.S. and China also contributed to the fall.