Delegations from both countries are expected to arrive in Islamabad on Sunday to reach an understanding on Iran’s nuclear programme and de-escalate tensions in the Middle East.
Pakistan earlier hosted the first round of negotiations between the two warring sides last week. However, the talks ended without any progress.
Pakistan’s leaders, including Prime Minister Shehbaz Sharif and Army Chief Field Marshal Asim Munir, have been holding talks with Iranian officials as well as regional countries, including Qatar and Turkey, to reach an agreement.
The talks are expected to focus on Iran’s nuclear programme, sanctions relief, and broader regional security concerns, sources said.
The United States is seeking limits on Iran’s uranium enrichment and nuclear facilities, while Tehran maintains that its nuclear programme is a sovereign right and has indicated it would only consider temporary restrictions under a deal.
A previous round of negotiations held last weekend ended without agreement.
The latest talks come as a Pakistan-brokered ceasefire arrangement is due to expire early next week.
Neither Washington nor Tehran has formally confirmed the Islamabad meeting, although US President Donald Trump has suggested that negotiations could take place over the weekend and indicated progress in discussions without providing details.
A White House official, briefing reporters during a presidential flight, said Trump would make remarks from the Oval Office on Monday morning, where he is expected to comment further on developments, though no specifics were disclosed.