[1] Since the Sino-Vietnamese border region was inaccessible to foreign correspondents during the war, Vietnamese claims was never independently verified, and the incident was largely unknown outside Vietnam.
Associated Press journalists visiting Tong Chup in 1987 cited Vietnamese officials that the number of deaths was higher than the 504 killed in Mỹ Lai massacre according to Vietnamese statistics [2][verification needed] After the Paris Peace Accords on Vietnam were signed in 1973, the relationship between the Democratic Republic of Vietnam and the People's Republic of China began to deteriorate.
China began to cut aid to the Democratic Republic of Vietnam on the grounds that it made a compromise with the United States.
Lo Ich Vinh, former Chairman of Hung Dao Commune People's Committee, inside the well there were a few AK cartridges and a hammer.
She said that at the time of the incident, from her cellar, "loud screams and curses could be heard coming from the basements" and "the sound of children crying".