Sanna Marin, whose party is the largest in a five-member governing coalition, is set to be the country's third female leader. Marin narrowly defeated Antti Lindtman by a 32 to 29 vote in the party council.
The Egyptian capital Cairo is the world's most dangerous megacity for women, with high rates of harassment and a lack of opportunities. In the Thomson Reuters Foundation poll, London ranked best metropolis for women.