WASHINGTON/ISLAMABAD (REUTERS)

US President Donald Trump said Iran could telephone if it wants to negotiate an end to their two-month war, as Tehran's ​foreign minister landed in Russia on Monday to meet President Vladimir Putin.

Hopes of reviving peace efforts dimmed on Saturday when Trump scrapped a visit to Islamabad by his envoys Steve Witkoff and Jared Kushner. Iranian Foreign Minister Abbas Araqchi shuttled to and from mediators Pakistan and Oman on Sunday before flying to Russia, with the two ⁠sides still seemingly far apart on issues including Iran's nuclear ambitions and access through the crucial Strait of Hormuz.

Oil prices rose and US ​stock futures wobbled lower in early Asia trade on Monday after US-Iran peace talks stalled over the weekend.

"If they want to ‌talk, they can come to us, or they can call us. You know, ⁠there is ​a telephone. We have nice, secure lines," Trump told "The Sunday Briefing" on Fox News.

"They know what has to be in the agreement. It's very simple: They cannot have a nuclear weapon; otherwise, there's no reason to meet," Trump said.

Although a ceasefire has ‌paused full-scale fighting in the conflict, which began with US-Israeli strikes on Iran on February 28, no agreement has been ‌reached on terms to end the war.

Axios reported on Sunday that Iran gave the US a new proposal through Pakistani mediators on reopening the economically vital Strait ​of Hormuz, and the ending of the war, with nuclear negotiations postponed for a later stage.

The US State Department and White House did not immediately respond to requests for comment on the report, which cited an unnamed US official and two sources with knowledge of the matter.

While Araqchi met Pakistani officials, Trump, speaking in Florida on Saturday, ‌said he cancelled his envoys' visit due to too much travel and expense for what he considered an inadequate Iranian offer.