Manufacturing activity in two of Asia's biggest economies has slowed raising fresh concerns about global economic recovery faltering.
Factory output in Japan rose 0.6% in July, compared with the previous month, much lower than the 3.8% increase in June.
Meanwhile, South Korea's output fell 0.4% in July from the previous month.
Manufacturing activity in two of Asia's leading exporters is a key indicator of the health of the global economy.
Japan's factories have had to deal with power shortages in the wake of the damage caused to the country's infrastructure by the earthquake and tsunami earlier this year.
They have also been hurt by a strengthening Yen, which has made Japanese goods more expensive to foreign buyers.
On the other hand, South Korean manufacturers have been dealt a double blow by sluggish domestic demand.