South Korea's industrial output grew in May from a year earlier despite persistent eurozone debt problems and market uncertainties, a government report showed Friday.

According to the report by Statistics Korea, production in the mining and manufacturing industries expanded 2.6 percent last month from a year earlier. In April, the output remained unchanged from the same month in 2011.

Industrial production also inched up 1.1 percent on-month, slightly picking up speed from a 0.9 percent gain in April, the report said.

The country's service sector output advanced 2.2 percent on-year in May. It also edged up 0.2 percent from the previous month. (Yonhap News)