China has expressed "strong dissatisfaction and opposition" over an Indian unmanned aerial vehicle (UAV)'s alleged "intrusion" into its territory. The development, which comes after the recent Doklam standoff, could potentially worsen the border situation between the two countries.

Although Beijing has not disclosed when exactly the UAV entered its territory or about the type of drone, a senior Chinese official said the aircraft crashed in "recent days".

"India's move has infringed upon China's territorial sovereignty, and we are strongly dissatisfied with and opposed to this," said Zhang Shuili, deputy chief of the combat bureau of the Western Theater Command's joint staff department, according to the multiple Chinese state-run media outlets.

"We will fulfil our mission and responsibility and defend China's national sovereignty and security resolutely."

The exact location where the incident took place was also not mentioned. For more than two months which was filled with heated rhetoric, China and India were locked in a tense standoff in a border area known as Doklam and it only ended when there was high-level intervention in August.

"China's border forces acted professionally and responsibly, and examined the equipment," added Zhang.

Though the two sides have been attempting to resolve disputes in the frontier points peacefully, there is still a deep distrust running between China and India. New Delhi has not yet responded to China's claims.

Top Indian military officials, including the army chief, had said in recent months that New Delhi cannot remain complacent and be prepared to confront if a full-scale conflict breaks out.