Japanese official development assistance for Peru has plunged sharply amid a chill in diplomatic ties over the fate of Alberto Fujimori, the former Peruvian president of Japanese descent.

The steep fall comes after a decade-long spree that began soon after Fujimori took office in 1990 and continued until he abruptly resigned his presidency in disgrace during a visit to Japan in the autumn of 2000.

Japan extended between 30 billion yen and 40 billion yen in ODA, mostly in low-interest yen loans, annually to the Latin American country during Fujimori's reign.