, March 17 -- Iran's Supreme Leader Mojtaba Khamenei has rejected proposals for a ceasefire with the United States, describing the intermediaries' terms as "not acceptable" and pledging to pursue full revenge against the US and Israel, a senior Iranian official said Tuesday.

In his first foreign policy statement since his appointment, Khamenei vowed to avenge Iranians killed in the ongoing war, promising that Iran would "obtain compensation" from its enemies and would not retreat, resisting with "full force." He added that limited retaliatory actions have already begun, but the mission of revenge remains a top priority.

Khamenei, 56, may be receiving medical treatment in Moscow after being injured in the US-Israeli airstrike that killed...