Wynn Macau leads plunge in gaming stocks as Suncity closes VIP rooms

** Wynn Macau leads plunge in Macau gaming stocks, falling 7.8% to HK$6.41

** Stock hits the lowest level since Oct. 12 and on course for a fourth straight session of decline

** Trading in shares of Suncity Group was suspended on Wednesday as worries over a crackdown in the world's largest gambling hub grew

** Suncity has closed all VIP gaming rooms in Macau after its chairman was arrested, two sources with direct knowledge of the situation told Reuters

** Alvin Chau, founder of Suncity Group, a conglomerate with interests that span gambling to property, was arrested by Macau police on Sunday

** Suncity unit Summit Ascent Holdings said late on Monday Chau had indicated his intention to resign from the post of chairman

** Galaxy Entertainment falls 3.5%, the biggest percentage decliner on the Hang Seng Index and the biggest decliner on the Hang Seng Commerce & Industry Index

** MGM China, Melco, Sands China and SJM Holdings fall between 1.4% and 4.7%

** Summit Ascent drops as much as 17.6% to HK$0.14, lowest since February 2007

** The Hang Seng Commerce & Industry Index rises 1.3% and the benchmark index climbs 1.2%