America’s largest retailer plans to raise prices later this month and early this summer, when tariff-affected merchandise hits its store shelves. Some prices already have increased.

NEW YORK (AP) — Walmart’s first quarter profit slipped and it said it must raise prices due to higher costs from tariffs implemented by President Donald Trump. The nation’s largest retailers posted strong quarterly sales Thursday and said it expects sales growth of 3.5% to 4.5% in the second quarter.

The retail giant said Trump’s import taxes remain too high to avoid passing along to shoppers, who could start paying more for some items as soon as late May.