China warns US over media outlets

China has warned it will take countermeasures after the US added four more Chinese media outlets to a list of organisations considered "foreign missions" in the US because of their ties to the government and ruling Communist Party.

Foreign ministry spokesperson Zhao Lijian attacked the Trump administration's move as "yet another example of the US's flagrant political suppression of the Chinese media," saying it would interfere with their reporting on the US and betray America's commitment to freedom of the press.

"We strongly urge the United States to abandon the Cold War mentality and ideological prejudice, and immediately stop and correct this wrong practice that serves no one's interest. Otherwise China will have to make the necessary legitimate response," Zhao said.

The US decision on Monday to add the four organisations to the list, which already included five others, doesn't directly impede their ability to conduct journalism but could force some to cut staff in the US and is likely to further aggravate relations between the two countries.

State Department officials said the four organisations, including state-run CCTV, will be required to submit the identities of all staff in the US and any real estate holdings just as they would if they were foreign embassies or consulates.

The five other Chinese organisations were directed to cap the number of people they can employ in the United States in March - a month after they were designated as foreign missions.

China responded by revoking the media credentials of all American journalists at The New York Times, The Wall Street Journal and The Washington Post.

State Department officials said the organisations are essentially mouthpieces for the Communist Party and Chinese government, not legitimate news outlets.