The tech mogul and world’s richest man met with Iran’s ambassador to the United Nations in New York on Monday, The New York Times reports, citing two anonymous Iranian officials. The meeting, held in a secret location, reportedly focused on how to defuse tensions between the two countries and lasted for over an hour.

The world’s richest person, not known for his humility, is still learning the cutthroat courtier politics of Donald Trump’s inner circle — and his ultimate influence remains an open question.