Prime Minister Yoshiro Mori on Monday promised to offer 500 million yen in grants to Angola to help reduce polio and malaria in the southern African country.

Mori talked about Japan's economic cooperation measures with visiting Angolan President Jose Eduardo dos Santos at his Official Residence, a Foreign Ministry official said.

Dos Santos expressed thanks for the humanitarian assistance but added that Angola also needs Japan's financial aid for infrastructure development, such as roads, power plants and a communications network, the official said.

Mori said Japan wants to concentrate on helping medical personnel training and medical institution building in Angola.

He also expressed Japan's continued support for Angola's more than 2 million domestic refugees who have fled their hometowns for the cities to escape from the country's guerrilla warfare, the official said.