Nokia's sales in North America have been growing steadily despite losing market share to Nordic rival Ericsson, reflecting a renewed market strength after years of weakness.
But now the sweeping tariffs imposed by U.S. President Donald Trump could counter this trend, as companies might pause orders fearing price increases.
The Finland-based company also announced a strategic multi-year extension of its partnership with T-Mobile in the U.S. to expand the carrier's 5G network coverage.
Its quarterly net sales totalled 4.39 billion euros, down 1% from a year earlier and a notch lower than the 4.41 billion euros expected by analysts.
Popular in TechMore ?
Nokia confirmed its outlook for the rest of the year, which now includes the acquisition of Infinera.
($1 = 0.8820 euros)