China's Defence Ministry and the Ministry of Foreign Affairs said that the Indian unmanned aerial vehicle (UAV) crashed into the Chinese side of the border recently.
"Recently an Indian Unmanned Aerial Vehicle, (UAV) invaded China's airspace and crashed in the Sikkim section of China-India border," Chinese Foreign Ministry spokesman Geng Shuang told a media briefing here.
However, there was no immediate response from the Indian Defence Ministry.
"I want to point out that the Sikkim section of the China India border has been delimited," he said, in an apparent reference to the 1890 China-British Treaty.
Also Read
Geng did not spell out when the incident had taken place.
He said further details can be obtained from the Chinese military.
Beijing often referred to the 1890 Britain-China treaty during the lengthy Dokalam standoff, stating that it has defined the Sikkim section of the boundary with Tibet, therefore the border in that area has been settled.
In its diplomatic protest to India, "China asked the Indian side to stop the activities of the devices near the border and work with China to maintain peace and tranquillity of the border areas", he said.
Geng declined to reveal the details of the drone. He did not confirm whether it has taken place near the Dokalam where the two countries were locked in a 73-day-long border standoff which ended on August 28.
India had objected to the construction highlighting its security concerns. The road was being built by the Chinese troops in the area also claimed by Bhutan.
Asked whether the protest was lodged in Beijing or Delhi, he said he is not aware of the details.
"I know that China has lodged solemn representation to the Indian side," he said.
Earlier, the Chinese military alleged that an Indian drone has "intruded" into its airspace recently and crashed into the Chinese side of the border and voiced strong dissatisfaction and opposition over the incident.
The Chinese military's western theatre command jurisdiction covers all most all of the Line of Actual Control (LAC) and including Tibet's border region with India and the Ladakh region.
"India's move has infringed upon China's territorial sovereignty, and we are strongly dissatisfied with and opposed to this," Zhang has been quoted by state-run Xinhua news agency as saying.
"We will fulfil our mission and responsibility and defend China's national sovereignty and security resolutely," he said.
Asked whether, the drone issue would figure in Wang's talks with Indian officials when he visits New Delhi, Geng said the "goal" of the Chinese foreign minister's visit was to attend the RIC meeting.
"When he is in India he will meet with the senior officials of the Indian side. At that time, the two sides will exchange views on China-India relations and other issues of the common concern," he said.
It is expected to be followed by the 20th round of India-China boundary talks in New Delhi between Chinese State Councillor Yang Jiechi and National Security Adviser Ajit Doval, who are the designated Special Representatives.
Disclaimer: No Business Standard Journalist was involved in creation of this content