China has dismissed Japan's expression of 'regret' over the break-in at its Tokyo embassy as insufficient. A Japanese military officer, armed with a knife, breached security at the Chinese diplomatic mission on Tuesday. Chinese Foreign Ministry spokesperson Lin Jian stated Japan has provided no details about the incident and must deliver a responsible explanation. The breach threatens to further strain Sino-Japanese relations, already tense since November when Japan signaled potential military action in defense of Taiwan. China is demanding a full investigation.
Japan's Chief Cabinet Secretary Minoru Kihara called the incident 'regrettable' and pledged preventive measures, but Beijing insists words are not enough.