As of 6:00 p.m. Beijing time on the 5th, more than 100 people have been killed in the explosion, and more than 4000 people have been injured and many are missing. It is expected that the number of dead and injured will increase. At that time, I was working in front of the computer in the branch office. I suddenly felt that the building was shaking violently. At first, I thought it was an earthquake. The shaking was over and there was a loud explosion. < / P > < p > after the explosion, many people were injured by flying glass fragments, cars were overturned and many houses were damaged. Witnesses said that “glass rain is falling all over the city”. < / P > < p > he said that first there was a fire in the port, 10 firefighters were sent to put out the fire, and then there was an explosion. At present, the whereabouts of these firefighters are unknown. < / P > < p > “I’ve never seen such a large explosion in my life, it’s a national disaster.” “Like Hiroshima, the buildings were badly damaged…” abd said The Chinese Embassy in Lebanon confirmed on the 5th that a Chinese citizen was slightly injured in the explosion. The injured is an employee of a Chinese funded enterprise in Li, who was scratched by broken glass and has been treated. < / P > < p > after the explosion, although there were rumors and speculations about “murder” and “murder” on some social media, according to the report of the international broadcasting group of Lebanon, the highest National Defense Council of Lebanon announced that the cause of the explosion was that more than 2700 tons of ammonium nitrate were ignited by inflammable and explosive materials. According to the BBC, the Prime Minister of Lebanon, diab, said on the 4th that about 2750 tons of ammonium nitrate, an explosive substance, had been piled up in Beirut port for six years, which was unacceptable. < / P > < p > it was reported that the welding sparks ignited the explosives in the warehouse during the welding of the warehouse door containing explosives, which led to the explosion of ammonium nitrate stored in another warehouse. < p > < p > according to media reports, the shock wave and destructive force generated at the moment of the explosion were no less than those of Hiroshima, but there was no high temperature and radiation in the explosion, and the surrounding buildings were mostly high-strength concrete structures, so the number of casualties was not as much as Hiroshima. The countries in the Persian Gulf region were the first to support Lebanon. Qatar, Kuwait, Iran and Iraq have said they will provide emergency assistance to Lebanon. UN Secretary General Guterres extended his deepest condolences to the families of the victims, the people and the government of Lebanon. The United States, Britain, Australia, Canada, France and other western countries also expressed their support for Lebanon. At present, China’s peacekeeping forces in Lebanon have quickly organized officers and men to grasp the accident situation, count materials and machinery, and ensure that they can immediately dispatch after receiving rescue orders. However, according to foreign media reports, since this year, the economic and financial crisis in Lebanon has been intensifying, with the devaluation of the lira against the US dollar by more than 80%. The spread of the new crown epidemic has made the unemployment rate high and social contradictions intensified. In the view of analysts, the Big Bang will undoubtedly have a direct impact on the stability of the political situation, economic reconstruction and the ongoing anti epidemic work in Lebanon. In the future, Lebanon’s economic and social contradictions may continue to deepen, and subsequent events such as accountability will aggravate the current government’s social governance and break the already fragile balance.