WASHINGTON (Reuters) - The U.S. Commerce Department said Wednesday it is opening a probe into national security impacts of imports of medium-duty and heavy-duty trucks and related parts into the United States.

President Donald Trump’s administration started an investigation into the need for tariffs on imports of medium- and heavy-duty trucks and parts, an expansion of his trade war that has hit hundreds of nations and sectors.

The Trump administration is looking into the effect of what it deems predatory trade practices on the competitiveness of the U.S. truck industry. The post Feds launch probe of truck imports’ effect on truck prices,