Japan's industrial production unexpectedly tumbled in July, said the Trade Ministry on Friday. Production retreated 1.2 per cent from June, when it rose 0.4 per cent.
"This could indicate that the trade balance won't be recovering for the time being, which could be considered a yen-weakening factor," said Daisuke Karakama, market economist and vice president of Forex sales at Mizuho Corporate Bank.
The Nikkei 225 Stock Average retreated 1.60 per cent, or 143.87 points, to 8,839.91. The broader Topix Index tumbled 1.63 per cent, or 12.15, to 731.64.