Asian stocks mixed as traders follow US debate

Asian stock markets were mixed Tuesday as traders followed the U.S. presidential debate between candidates Hillary Clinton and Donald Trump.

KEEPING SCORE: Hong Kong's Hang Seng index advanced 0.4 percent to 23,409.97 and Tokyo's Nikkei 225 shed 0.3 percent to 16,490.41. Sydney's S&P-ASX 200 added 0.4 percent to 5,497.40 and the Shanghai Composite Index was unchanged at 2,981.10. South Korea's Kospi gained 0.9 percent to 2,017.94 and New Zealand also advanced. Southeast Asian markets declined.

DEBATE WATCH: Investors were watching the Clinton-Trump debate in a tight race that has unnerved markets seeking certainty about the future of U.S. policy. Trump has called for...