(CNBC) — Stocks fell sharply on Monday after China decided to raise tariffs on some U.S. goods as the ongoing trade war between the world’s largest economies intensifies.

The Dow Jones Industrial Average dropped 617.38 points, or 2.4%, to 25,324.99 and posted its worst session since Jan. 3. The S&P 500 also had its worst day since early January, falling 2.4% to 2,811.87. The Nasdaq Composite dropped 3.4% — its biggest one-day loss of the year — to 7,647.02.

Note: Read our discussion guidelines before commenting.