Chinese military or armed police are gathering in the Hong Kong border, Bloomberg reported quoting a senior US official.

The official told reporters that the White House is monitoring the situation in Hong Kong demonstrations and that Chinese troops or armed police have gathered in the border with Hong Kong.

"If the White House sincerely wishes to peace and stability in Hong Kong, we must express ourselves in a rational way to radical people who use violence," said a spokesman for China's foreign ministry. "I have to advise," he said.

The Chinese government recently warned against Hong Kong protesters, suggesting the possibility of the release of People's Liberation Army.

However, the analysis that Hong Kong is still a small possibility is not enough because China will have to face a tremendous backlash when it puts its troops into Hong Kong.

(Photo = Getty Images Korea)