Washington DC, March 30 -- US President Donald Trump on Sunday (local time) said he's optimistic about a deal with Iran, citing "very good negotiations" and Iran allowing 20 oil tankers to pass through the Strait of Hormuz as a "sign of respect".

Speaking to reporters aboard Air Force One en route to Joint Base Andrews, Trump said, "I do see a deal in Iran, yeah. Could be soon."

"So we've had very good negotiations today with Iran, getting a lot of the things that they should have given us a long time ago. See how it works out, but they're very good, moving along very nicely. And they've destroyed a lot of additional targets today. The Navy's gone, the Air Force's gone, we know that. We've destroyed many, many targets today. It was a bi...