Stock-market futures were down Sunday evening, suggesting investors were bracing for a sharp drop in major indexes after weekend talks between the U.S. and Iran failed to open the Strait of Hormuz and led President Donald Trump to announce a blockade of the crucial waterway.

The IDF has confirmed eliminating Alireza Tangsiri, commander of the Iranian Revolutionary Guard Corps Navy, who was responsible for the Strait of Hormuz blockade, while US President Donald Trump has urged Iran's negotiators to engage fully before it's too late.