Shares were mixed Tuesday in Asia after the U.S. military said it carried out what it called "self-defense" strikes in southern Iran, including on missile launch sites and boats placing mines.
The attacks came even as President Donald Trump said on social media that negotiations on ending the war were "proceeding nicely."
U.S. futures jumped. Oil prices were mixed, with Brent crude rising but still trading below $100 a barrel while U.S. benchmark crude oil fell.