China said on Monday that the recent visit of a high-level Japanese official to Taiwan has caused a "serious disturbance" to the improvement of China-Japan relations. Beijing strongly objected, lodging "solemn representations" with the Japanese.

Jiro Akama, deputy minister of Japan's Ministry of Internal Affairs and Communications, visited Taiwan on Saturday to attend a Japanese culture and tourism promotion event, according to Kyodo News Agency. The visit made him the most senior government official to visit the island since "diplomatic" ties were severed with Chinese Taipei in 1972.

"China is resolutely opposed to the visit and has lodged solemn representations with Japan," Foreign Ministry spokeswoman Hua Chunying said at a daily news conference in Beijing.