Iran's foreign minister Abbas Araghchi headed to Russia on Sunday as peace efforts between Tehran and Washington hung in the balance, following a flurry of regional diplomacy and the collapse of planned talks in Pakistan.
Abbas Araghchi visited Oman between trips to Pakistani capital Islamabad and is expected to meet President Vladimir Putin on Monday, according to the Iranian ambassador.
On Saturday, US President Donald Trump scrapped a planned trip
to Islamabad by his envoys Steve Witkoff and Jared Kushner. In a sign that efforts were ongoing, the news agency said Iran had sent "written messages" to the Americans via mediator Pakistan outlining red lines, including nuclear issues and the Strait of Hormuz.
Media said the messages were not part of formal negotiations, however.
A ceasefire in the US-Israeli war with Iran has so far held, but its economic shockwaves continued to reverberate globally.