The Transport Ministry will review Narita airport in Chiba Prefecture and Tokyo's Haneda Airport with an eye to possible construction of a third airport in the metropolis, newly appointed Transport Minister Hajime Morita said.

"Even after (current) construction to expand its runway is completed, Narita airport will eventually reach capacity. Debate on a third airport will then emerge," Morita, who assumed his post when the new Cabinet was formed last week, said in a recent interview with reporters.

Morita, who is from Tottori Prefecture and once served as a Finance Ministry bureaucrat, said another option is to allow Haneda airport, which mainly handles domestic flights, to take on international flights.