Cornel Feruta has been named as the acting Director General of the International Atomic Energy Agency (IAEA).
It comes after the death of Yukiya Amano earlier this week.
Members of the board held an extraordinary meeting on Thursday in which they decided to designate the Romanian official as acting director general.
During the meeting, all attendees stood a moment of silence as a respect gesture for the achievements of the late Japanese director.

Saudi Arabia says shrapnel from intercepted ballistic missile in Asir injures one
Nine injured in Australia as car crashes into crowd north of Sydney
India's 'cockroach' youth party to protest, demand poll chief's resignation
Congo's Ebola outbreak has killed more than 4,000, government data shows
About 400 French schools closed as some student protests turn violent
