From US media RFA:
"China began on Wednesday military drills in an area overlapping with Vietnam’s exclusive economic zone, or EEZ, in the South China Sea, the Sanya Maritime Safety Administration said in a navigation warning.
The “training exercise” is being conducted daily until Dec. 21 in waters southwest of China’s Hainan island, with a portion lying inside Vietnam’s EEZ where it has jurisdiction over resources in the waters and on the seabed.[...]
Vietnamese South China Sea watcher Duan Dang told Radio Free Asia that China’s second aircraft carrier – the Shandong – was spotted approaching the exercise area on Dec. 17.[...]"
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He seems like the informer source of RFA?
That guy X profile include this link:
He also seem to focus on China in SEA?
As per a linkedin i saw:
"As a freelance journalist with over a decade of experience in the publishing industry, I have established myself as an expert on maritime, security, and political issues in the Indo-Pacific region. Through my extensive network of sources and in-depth knowledge of the area, I have been able to provide thought-provoking and informed coverage on a variety of topics, with a particular focus on China and the South China Sea. In addition to my journalism work, I am also an enthusiastic and dedicated security observer with a passion for understanding and analyzing complex security and military developments in the Indo-Pacific, with words in The Financial Times, Forbes, Newsweek, South China Morning Post, Asia Maritime Transparency Initiative..."