Bloomberg quoted informed sources as saying that the White House decided to postpone US Secretary of State Anthony Blinken's visit to Beijing after a Chinese balloon was spotted in American airspace.

The Wall Street Journal also quoted a US State Department official as saying that Blinken's visit to China was postponed indefinitely after the spy balloon was spotted.

And the US Department of Defense (The Pentagon) announced earlier that it was tracking a Chinese spy balloon flying at high altitude over the United States, while military officials discussed shooting it down over Montana.

Pentagon spokesman Gen. Patrick Ryder told reporters that the United States had detected and was tracking a surveillance balloon currently flying over the United States.

A US official explained that the balloon flew over the northwest of the United States, where there are sensitive air bases and strategic nuclear missiles in underground facilities.

Beijing responded that the balloon seen in US airspace was "civilian and derailed".

Chinese Foreign Ministry spokeswoman Mao Ning said that Beijing is investigating the balloon issue raised by US officials.

Mao added that guesswork is not conducive to a proper solution, calling for the two sides to work together calmly and cautiously on the balloon issue.

The Chinese Foreign Ministry affirmed that China is a responsible country and abides by international laws, and has no intention of violating the territory or airspace of any country.