Beijing issued its second smog red alert of the month, closing schools, forcing many cars off the roads and restricting factory production. The red alerts, the most serious in a four-tier warning system, are triggered when high pollution levels are forecast to last more than 72 hours.
Also around the region, Typhoon Melor left at least one person dead and wide areas without power as it crossed over the central Philippines. About 730,000 people were evacuated to safer ground before the storm hit.
Blowing horns and banging on tambourines, thousands of South Koreans marched in Seoul to protest the arrest of a labor union leader who may face a rarely used sedition charge over the eruption of violence at an earlier anti-government protest. The demonstration was the latest in a series of mass protests in recent months of conservative President Park Geun-hye.
South Korea lowered its growth outlook for 2016, citing headwinds for exports from China's slowdown. The finance ministry said Asia's fourth-largest economy will expand 3.1 percent next year. It previously forecast 3.3 percent growth. The lower number would still be an improvement from 2015's forecast growth of 2.7 percent.
This gallery was curated by Associated Press photo editor Karly Domb Sadof in Bangkok.