Who is Lana Nusseibeh, the UAE diplomat in the race to become next UN secretary-general?

The Emirati diplomat and minister Lana Nusseibeh has emerged as a late contender in the contest for the next UN secretary-general. The UAE announced her last-minute candidacy earlier this month, amid a stalemate to choose a successor to Portuguese incumbent Antonio Guterres, whose 10-year term ends on 31 December. The successful candidate is usually selected by the 15-member UN Security Council (UNSC), before the recommendation is rubber-stamped by the wider UN General Assembly (UNGA). Traditionally the role rotates between continents: many believe that a female diplomat from Latin America should occupy the position.