"Our border troops had a high-level meeting and reached important consensus on easing the border situation but astonishingly on June 15 the Indian troops seriously violated our consensus and twice crossed the border line for illegal activities and provoked and attacked Chinese personnel which led to serious physical conflict between the two sides and China has lodged strong protest and representation with the Indian side," Zhao said.
"We once again solemnly ask the Indian side to follow our consensus, strictly regulate its front-line troops and do not cross the line, do not stir up troubles or make unilateral moves that may complicate matters," the spokesperson said.
Zhao also added that both sides agree to resolve this issue through dialogue and consultation and make efforts for easing the situation and upholding the peace and security along the border area.
The incident comes days after Indian Army Chief Gen MM Naravane said both sides have begun disengaging from the Galwan Valley.
"The loss of lives on the Indian side includes an officer and two soldiers," the Army said in a statement and added that senior military officials of the two sides are currently engaged in a meeting to defuse the situation.
After 1975 this is the first violent incident on the India-China
border in which casualties have taken place.
Earlier looking to resolve the dispute over Chinese military buildup, India and China were holding talks in Eastern Ladakh.
The Indian and Chinese armies are engaged in a standoff in Pangong Tso, Galwan Valley, Demchok and Daulat Beg Oldie in eastern Ladakh.
A sizeable number of Chinese Army personnel even transgressed into the Indian side of the de-facto border in several areas including Pangong Tso.
The Indian Army has been fiercely objecting to the transgressions, and demanded their immediate withdrawal for restoration of peace and tranquillity in the area. Both sides held a series of talks in the last few days to resolve the row.