Consumer prices grew at the steepest pace in almost a decade last month. 

According to Statistics Korea on Tuesday, the country's consumer price index stood at 108-point-97 in October, up three-point-two percent from a year earlier. 

It is the largest on-year gain since January 2012 when it grew three-point-three percent. 

By product, prices of commodities rose three-point-two percent from a year earlier. In particular, the prices of petroleum products soared 27-point-three percent, the largest growth since August 2008. 

Price growth of agricultural, livestock and fisheries goods slowed to zero-point-two percent in October from rises of seven-point-eight percent in August and three-point-seven percent in September. 

Core inflation, which excludes volatile food and oil prices, rose two-point-eight percent on-year in October, also the largest growth since January 2012.