More than half of high-ranking civil officials' children have received favors in carrying out their compulsory military service, an opposition lawmaker said Wednesday, casting concerns over inequality among soldiers.

According to the data compiled by Rep. Kim Joong-ro of the minor opposition People's Party, around 54.1 percent of family members belonging to high ranking public employees were assigned to rear area, non-combat units. He pointed out that on the whole, such positions only account for 33 percent of military positions.

As the country is still technically at war with the North, all able-bodied South Korean men between the ages of 18 and 35 must serve in the military for about two years.