Pakistan has reported "significant progress" in high-level diplomatic talks held in Tehran, aimed at de-escalating the ongoing US-Iran war, Iran's Press TV reports

Third-party mediation of this kind follows a well-worn pattern: regional states with ties to both sides, often Gulf or South Asian actors, step in as intermediaries when direct channels are absent or politically toxic, and announcements of progress from the mediator rather than the principals are usually the first public marker that back-channels exist. The sourcing here matters, with the claim carried by state-affiliated Iranian media rather than by Washington or an independent party, and in comparable episodes one-sided readouts have tended to overstate momentum relative to what the other side later confirms. The distinction worth drawing is between de-escalation talks and a ceasefire framework: the former caps rhetoric and limits new escalation, the latter requires sequencing on enrichment, sanctions relief, or proxy activity, and historically the gap between the two has been wide. The established market pattern in such episodes is that crude and freight and insurance costs respond first and most violently to headline risk in either direction, with initial de-escalation headlines typically retracing a portion of any war premium before verification arrives. The tells to track are confirmation or silence from the US side, any parallel movement in back-channel actors such as Oman or Qatar, and whether tanker traffic and insurance rates in the Gulf begin to normalise. As a single-source claim of progress, the signal is preliminary.