U.S. inflation remained surprisingly muted through May, with limited impact from President Donald Trump’s tariffs. But U.S. airstrikes on Iran’s nuclear facilities over the weekend could contribute to pressures that may send price gains back to the highest levels in two years.

The U.S. military was able to carry out its strikes on Iranian nuclear facilities on Saturday without Iran firing back, but leading up to the daring mission, U.S. officials feared Donald Trump would tip off Tehran.