A senior prosecutor suspected of taking bribes will be summoned for questioning in a special investigation on Tuesday.
The senior prosecutor, identified only by his surname Kim, is suspected of pocketing via borrowed-name accounts 200 million won from a close contact of infamous swindler Cho Hee-pal and receiving 600 million won from an official of Eugene Group.
Prosecutors plan to grill Kim on whether he was involved in opening borrowed-name accounts and whether he got the money in return for favors.
On Monday, investigators questioned the head of Eugene Group, Yoo Kyung-sun, and his brother, Yoo Soon-tae, until early Tuesday morning. Both are suspected of handing bribes to Kim.
Police are also investigating and plan to continue probing key witnesses.