Fears of pandemic-era shortages at American stores have made a big comeback as shipping-container traffic between China and the U.S. plunged in the wake of President Trump’s tariffs.

The economy grew steadily from January through March, but U.S. tariffs pose a risk for China in the coming weeks and months.

China exempted some U.S. imports from its steep tariffs in a sign on Friday that the trade war between the two countries could be easing, though China quickly knocked down U.S. President Donald Trump's assertion that negotiations were underway.