Three indices that assess the country's industry trends all increased in October, but an index which reflects current economic conditions dipped for the seventh consecutive month, adding to concerns of a prolonged economic downturn.

Statistics Korea said Friday the nation’s industrial output rebounded by zero-point-four percent in October from a month earlier, due to a rise in metal processing and logistics production.

Production in the mining, manufacturing, gas and electricity industries gained one percent on-month in October, while production in the service sector gained point-three percent.

Retail sales advanced point-two percent and facility investment increased one-point-nine percent in October.

Indices which reflect current economic conditions and predict turning points in the business cycle, however, fell to a nine-year low in October.

The statistical agency said improvements in the indicators are not strong enough to help the overall economic cycle take a turn.