Veteran Egyptian diplomat Moushira Khattab finished third in Wednesday's runoff vote for the new head of UNESCO, while France and Qatar's candidates shared first place with 18 votes each in the third round of voting.
On Tuesday, Khattab took third place in the second round of voting with 12 votes while Qatar's former culture minister Hamad Bin Abdulaziz Al-Kawari remained in the lead with 20 votes and France's candidate Audrey Azoulay finished second with 13.
The 58 members of UNESCO's executive board voted in the first round on Monday to select a successor to outgoing Bulgarian Director-General Irina Bokova.
Khattab finished third in the first round of voting on Monday with 11 votes.
A candidate must secure the support of 30 members of the board to become the new head of the UN culture and heritage organisation.
A fourth round of voting will take place on Thursday as none of the candidates secured the required number of votes in the third round.
If no candidate secures the required 30 votes in the fourth round, a fifth and final round will take place on Friday between the two candidates who finish first and second in the fourth round.
If there is a draw on Friday, a toss will decide the winner.
Khattab, 73, served as Egypt's ambassador to Czechoslovakia from 1990 to 1995, and later the ambassador to South Africa from 1995 to 1999.