Iran sent a written message via Swiss diplomats in mid-October saying that it would not seek to kill Donald Trump, according to a U.S. official.

Iran has long accused Israel of targeting its nuclear program through covert operations. Israeli officials, in turn, have hinted at potential strikes on Iran's nuclear sites. This exchange of threats that has intensified amid ongoing hostilities between the two nations since Israel's attacks on Hezbollah, a long-standing ally.