The account of the People’s Liberation Army(the ground force under the Chinese Armed Forces) announced on the wibo social media account to prepare for war...

(Abu Saleh)

The beginning of the sudden exercises of the People's Liberation Army of China. Takeoff of combat helicopters Harbin Z-19 of the 72nd Army Aviation Brigade of the PLA Eastern Combat Command Zone (operational zone - Taiwan and the Taiwan Strait)Fujian Province July 30/ 2022

Ukraine media reports Russian forces have dropped Vaccum Bomb on an Oil depot in Okhtyrka, Sumy Oblast.

This type of weapon is known as the most deadly non-nuclear bomb, producing high-temperature explosions.

That explains the mushroom cloud that appeared after that bombing.