Dow Jones futures, the S&P 500, and Nasdaq futures are expected to open on Sunday evening following President Donald Trump's announcement that the U.S. had conducted airstrikes on three Iranian nuclear facilities.

In a social-media post, Trump said U.S. bombers had attacked three Iranian nuclear sites — Fordow, Natanz and Isfehan — in a bid to help crush the country’s ability to produce the ingredients necessary for a nuclear weapon.