Saudi Arabia's Crown Prince Mohammed bin Salman and Israel's Prime Minister Benjamin Netanyahu met at the Royal Palace in the Jordanian capital on the sidelines of a visit to Amman by White House special adviser Jared Kushner and US Middle East envoy Jason Greenblatt.
Citing an informed source, the report said bin Salman's meetings with Netanyahu took place both with and without the presence of Jordan’s King Abdullah.
Israel and Saudi Arabia have no diplomatic relations, but they are widely believed to have secret liaisons.
Latest reports say the two regimes are working behind the scenes to establish formal relations.
Kushner and Greenblatt are on a regional tour to discuss Washington's so-called peace plan with officials in the occupied territories, Saudi Arabia, Egypt, Jordan and Qatar.
In November 2017, Israeli Prime Minister Benjamin Netanyahu admitted that despite having no diplomatic relations with Riyadh, Tel Aviv had had "contacts" with Saudi Arabia, which he said "have been kept in general secret."