The NATO bombed Yugoslavia for 78 days without the approval of the United Nations Security Council, high-ranking Chinese official Liu Xiaoming reminisced on the events from 23 years ago in a message on his Twitter account.

“23 years ago, the NATO dropped 420,000 bombs with a total weight of 22,000 tons, including 15 tons of depleted uranium, without the approval of the UN Security Council,” tweeted Liu, former Ambassador of China in London, and current Special Representative of China for the Korean Peninsula.

As a reminder, the bombing of the Federal Republic of Yugoslavia ceased on June 10, after the signing of the Kumanovo Agreement a day earlier.

More than 2,500 people, including 79 children, were killed in the bombing.

The Embassy of China in Belgrade was hit on May 1, 1999. Three people were killed and more than 20 were injured in the incident.