More than half of the 1,243 unresolved cases at South Korea’s Corruption Investigation Office for High-ranking Officials had been pending for more than three months as of July 22. Data from the office of People Power Party lawmaker Shin Dong-wook. Graphic by Asia Today and translated by UPI

Aug. 4 (Asia Today) -- More than half of the unresolved cases at South Korea's anti-corruption agency have been pending for more than three months, raising concerns that chronic understaffing is undermining its ability to investigate alleged crimes involving senior government officials.

Data submitted by the Corruption Investigation Office for High-ranking Officials to People Power Party lawmaker Shin Dong-wook showed that 646 of its 1,243 unresolved cases had been pending for more than three months as of July 22.

The figure represented 52% of the agency's unresolved caseload. The agency generally classifies cases pending for more than three months as long-running investigations.

The data showed that 597 cases had been pending for three months or less. An additional 252 cases had been pending for more than three months but less than six months, while 248 had been unresolved for six months to less than a year.