Iran threatened on Tuesday to strike facilities in the Middle East owned by US technology companies as part of the escalating war that began with US and Israeli strikes at the end of February.

Tehran said it had shot down the F-15 warplane, while US media reported American special forces had rescued one of its two crew members, with the other still missing.

Two-thirds of Americans believe that the U.S. should work to end its involvement in the Iran war quickly, even if that means not achieving the goals set out by the Trump administration, according to a...