A spotter lines up a truck before a container is loaded from a ship in the Seagirt Marine Terminal at the Port of Baltimore.

U.S. economic growth slowed in the first quarter but not as sharply as previously estimated, with gains in exports and investment in software partially offsetting weak consumer spending.

Gross domestic product increased at a 1.1 percent annual rate, rather than the 0.8 percent pace reported last month, the Commerce Department said on Tuesday in its third GDP estimate.