Most markets in Asia rose on Tuesday, as oil prices advanced and gaming shares across the region retraced much of Monday's losses.
Shares of Crown Resorts — one of Australia's biggest casino companies — closed up 1.70 percent at 11.34 Australian dollars, after falling 13.90 percent in the previous session, which dragged other gaming stocks in the region on Monday.
Monday's drop followed reports that 18 of Crown's employees, including the executive vice president of the VIP international business, Jason O'Connor, were detained by Chinese authorities.
China's Foreign Ministry told CNBC on Monday in an emailed statement that Australian nationals were under criminal detention by the Chinese authorities for their "suspected involvements in gambling crimes." Later in the day, in a press conference, the foreign ministry's spokesperson explained further the employees were detained by the Shanghai police under gambling charges on October 14.
The spokesperson added the Australian Consulate General in Shanghai was notified.
On Tuesday Crown's majority owner, billionaire James Packer, said he was deeply concerned for the workers, while Reuters reported that Australian consular officials in Shanghai were making arrangements to visit them in detention.
Casinos cannot advertise in China and promoting gambling in other ways, such as advertising resort facilities or offering credit to high-spending clients, can also be problematic, Reuters said.
Hong Kong-listed gaming shares also advanced on Tuesday, after Monday's declines. Wynn Macau shares were up 3.83 percent in late-afternoon trade, Melco International added 3.66 percent and Galaxy Entertainment was higher by 3.24 percent.
Shares of Crown rival Star Entertainment, however, closed down 0.54 percent on Tuesday.