Explosive detonated at the US embassy in Beijing
https://edition-m.cnn.com/2018/07/26/asia/beijing-us-embassy-china-intl/index.html?r=https%3A%2F%2Fedition.cnn.com%2F
I'm skeptical about his intention to bomber US embassy.
I guess his real purpose was not to bomber the embassy, but to draw attention by detonating explosive in front of the world's most famous country's embassy.
Judging from his address, he would have alerted people worldwide about how unsatisfied inner Mongolian people are about the way Chinese Communist Party governs.