Washington DC, April 16 -- US President Donald Trump on Thursday (local time) said it remains unclear whether the ceasefire with Iran will be extended, even as he expressed optimism about ongoing negotiations and indicated that the next round of talks could take place over the weekend.

Responding to a question on extending the ceasefire, President Trump said, "We're doing very well. I can tell you, maybe it'll happen before that. I'm not sure it needs to be extended. Just so you know, Iran wants to make a deal, and we're dealing very nicely with them. We've got to have no nuclear weapons. If we do, that's a big factor, and they're willing to do things today that they weren't willing to do two months ago."

He added that the US is current...