Truck maker Volvo lowered its North America market outlook on Wednesday, pointing to increased uncertainty around tariffs and their impact on global trade, as it reported a bigger-than-expected fall in first-quarter profit.

The truck maker’s earnings fell sharply, missing analysts’ expectations, as sales declined 7% and deliveries fell 12% amid increasing uncertainty about tariffs.

Volvo AB’s income declined in the first quarter as uncertainty around US tariffs hit demand for trucks in North America.