The war, which shows no signs of ending soon, has disrupted oil exports from the region, driven fuel prices far higher worldwide and upended global air travel.
Iranian Foreign Minister Abbas Araghchi said that "we don't see any reason why we should talk with Americans" as President Trump has claimed Iran is seeking a deal to end the war between the U.S. and Iran.
More than 11.5 million people are under blizzard warnings, another 4.3 million are under winter storm warnings, and about 20.6 million are under an extreme heat watch, according to forecasters.