Asian markets ended mostly lower on Friday after North Korea claimed its fifth nuclear test and amid disappointment following the European Central Bank's policy decision.
Japan's benchmark Nikkei 225 ended essentially flat at 16,965.76, erasing early losses, while South Korea's Kospi finished down 1.31 percent, or 25.86 points, at 2037.87, after North Korea said it tested a miniaturized nuclear warhead in response to the "threats and sanctions from hostile elements."
Samsung also weighed on the Kospi. Shares tumbled 4.2 percent as the U.S. Federal Aviation Administration urged passengers not to turn on or charge their Galaxy Note 7 smartphones during flights and not to stow them in checked baggage due to concerns over the fire-prone batteries.
Australia's S&P/ASX 200 closed down 0.86 percent, or 46.551 points, at 5339.20, dragged by a 1.38 percent drop in its heavily-weighted financials subindex, partly offset by gains in the energy and materials sectors.
Chinese markets fell in the last hour of trade after trading flat throughout the session, with the Shanghai composite falling 0.55 percent, or 17.10 points, to 3078.85 and the Shenzhen composite shedding 0.73 percent, or 15.06 points, to 2035.02. .
The Hang Seng index bucked the trend, closing 0.81 percent higher, after reports that China was allowing mainland insurers participate in the Shanghai-Hong Kong stock connect.