Israel has reportedly shared fresh intelligence with the United States indicating that Iran may be preparing a new plot to assassinate President Donald Trump, according to sources familiar with the matter. If accurate, the intelligence would represent a major escalation in the confrontation between Washington and Tehran.

Iran has repeatedly vowed to avenge the 2020 U.S. drone strike that killed IRGC Quds Force commander Qassem Soleimani, an operation ordered by Trump during his first term.

The Israeli Embassy in Washington declined to comment on the report, while Iran’s mission to the United Nations did not immediately respond to requests for comment. The White House referred reporters to remarks Trump made on Wednesday.