China is reacting sharply against Japan and the United States over a recent online summit in which the leaders of the two nations discussed human rights issues in China.

At a news conference on Monday, Chinese Foreign Ministry spokesperson Zhao Lijian announced that China had lodged strong complaints with Washington and Tokyo.

He criticized the two leaders, saying they once again attacked and unjustly slandered China and violently interfered with the country's internal affairs. He said China "deplores and rejects this, and has lodged solemn diplomatic representation with the two countries."

Japan's Prime Minister Kishida Fumio and US President Joe Biden met virtually last Friday.

They both expressed opposition to unilateral attempts to change the status quo in the East and South China Seas and any economic coercion, apparently with China in mind.

They also shared serious concerns about the situation in Hong Kong, and the human rights situation in the Xinjiang Uygur Autonomous Region.

Furthermore, they underscored the importance of peace and stability across the Taiwan Strait and encouraged the peaceful resolution of cross-strait issues.

Kishida and Biden agreed to coordinate closely in addressing various issues related to China.

Zhao told reporters that issues concerning Taiwan, Xinjiang region, and Hong Kong are purely China's internal affairs and meddling by any country or outside force is unacceptable.

He stressed no one and no nation should underestimate the Chinese people's resolve to protect the country's sovereignty and territory.