The Chinese embassy in Japan said on Sunday it strongly opposed Japanese Foreign Minister Yoko Kamikawa's statement congratulating Taiwan region's new leader-elect Lai Ching-te.

A spokesperson for the embassy said in a statement that the move by the Japanese side seriously interferes in China's internal affairs, violates the one-China principle and the spirit of the four political documents between China and Japan. China has made solemn representations with Japan, the spokesperson added.

The Taiwan question is purely China's internal affairs, and the Taiwan regional leadership election is China's local affairs, said the spokesperson.

Stressing the one-China principle is a basic norm in international relations and a universal consensus of the international community, the spokesperson said that China has consistently and firmly opposed any form of official exchanges between the Taiwan region and countries having diplomatic ties with China.

"We solemnly urge the Japanese side to deeply reflect on its history of aggression against the Taiwan region, earnestly honor its commitment on the Taiwan question, not send any wrong signal to the 'Taiwan independence' forces, and not disturb peace and stability across the Taiwan Straits as well as China-Japan relations," the spokesperson said in the statement.

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(Cover: A view of the Chinese embassy in Japan. /Chinese embassy in Japan)