China has asked four US media organisations to submit details about their operations in the country, the foreign ministry said on Wednesday, in what it described as retaliation for US measures against Chinese media outlets.

Voter information records held by New York show the presidential adviser -- whose portfolio includes everything from seeking peace in the Middle East to reining in the opioid crisis in the United States -- was registered as "female."

Concern over the slowdown of China’s economy is overblown, and the yuan’s devaluation is welcome, according to Australia’s treasurer.