A senior U.S. official has dismissed Iran's latest peace proposal as insufficient, raising concerns that the ongoing conflict could escalate.

The rejection comes amid reports that Iran is reviewing a new U.S. offer aimed at de-escalating the two-month-old war with the United States and Israel.

The development has intensified fears of renewed hostilities, with markets for signs of further volatility.

The U.S. stance suggests that current diplomatic efforts are not meeting the threshold for a resolution, potentially prolonging the conflict and its associated risks.

The situation is unfolding against a backdrop of heightened geopolitical tensions, with previous attempts to negotiate a ceasefire having failed to satisfy either side.

Analysts note that the lack of progress could lead to a deterioration in regional stability, with potential spillover effects on global energy markets and trade routes.