The United States and Iran signaled progress on Saturday toward a framework agreement that could end a nearly three-month standoff triggered by US and Israeli attacks on Iran and the shutdown of the Strait of Hormuz.

The step forward comes as global pressure grows to avert a wider regional conflict, with mediators saying both sides are inching closer to a workable de-escalation plan.What do we know?

US PresidentDonald Trump told CBS News that the two sides were "getting a lot closer" to finalizing a deal.

He refused to give specifics about the plan, but said that "every day it gets better and better."

In a separate interview with US news outlet Axios, Trump said the chance of an agreement was a "solid 50/50," while threatening to "blow them to kingdom come" if talks fail.