The U.S. trade deficit widened for a second month in October, as the value of imports increased and exports declined, which may weigh on economic growth in the fourth quarter.

The trade gap in goods and services grew by $4 billion, or 5.4%, to $78.2 billion from a month earlier, Commerce Department data showed Tuesday. The figures aren’t adjusted for inflation. The median estimate in a Bloomberg survey of economists called for a widening to $80 billion.