Q: it is reported that the US Navy's "Connecticut" submarine recently hit an unidentified object while diving in the South China Sea, causing a certain degree of damage and some injuries. What is China's comment on this? A: China expresses serious concern about this incident and requests clarification from the US side. As a party, the United States has the responsibility and obligation to explain in detail the relevant circumstances of the incident. For a long time, under the banner of "freedom of navigation and overflight", the U.S. military has frequently dispatched aircraft carriers, strategic bombers, nuclear submarines and other advanced weapon platforms to show off their force and make waves in the South China Sea, which has seriously threatened regional national security and exacerbated regional tensions, which is also the root cause and harm of this incident. At the same time, we believe that the above-mentioned actions of the United States are bound to affect the navigation safety in the South China Sea, cause serious concern and anxiety among countries along the South China Sea, and pose a serious threat and major risk to regional peace and stability. From the root, the United States should stop close reconnaissance and military deployment against China in the airspace adjacent to islands and reefs in the South China Sea, and stop the so-called "freedom of navigation" in the South China Sea. We note that the US military deliberately delayed and concealed the details of the accident. After the collision on October 2, it issued an ambiguous short statement five days later. This irresponsible and secretive approach lacks transparency and is very easy to cause misunderstanding and miscarriage of justice. China and countries around the South China Sea have to question the truth of the incident and the US intention. The incident also shows that the United States, Britain and Australia have recently established a trilateral security partnership to carry out nuclear submarine cooperation, enabling non nuclear countries such as Australia to obtain nuclear materials that can be used to manufacture nuclear weapons, which will disengage weapon grade highly enriched uranium from the necessary supervision, bring huge nuclear proliferation risks, seriously violate the spirit of the Treaty on the non proliferation of nuclear weapons and impact the international nuclear non-proliferation system, Inducing an arms race and undermining the construction of a nuclear free zone in Southeast Asia will also greatly increase the probability of nuclear accidents, which will bring severe challenges to regional peace and security. China demands that the United States take seriously the concerns of all parties, take a responsible attitude, give a detailed explanation of the incident as soon as possible, and give a satisfactory explanation to the international community and regional countries. (outlook new era)