U.S. manufacturing was steady in February, but a measure of prices at the factory gate jumped to nearly a three-year high and it took longer for materials to be delivered, suggesting that tariffs on imports could soon undercut production.

The Institute for Supply Management said output remained fairly steady, but tariffs on raw materials threaten U.S. growth.

U.S. manufacturing was steady in February, but a measure of prices at the factory gate jumped to near a three-year high and it was taking longer for materials to be delivered, suggesting that tariffs on imports could soon hamper production.