National Museum of Korea Director-General Yu Hong-jun has offered to resign amid controversy over exhibiting his personal collection at the museum.

Previously, the National Museum of Korea introduced the calligraphy piece titled "Ilbansiguk-eun" as the handwriting of independence activist Park Won-geun, but it was later confirmed to be the handwriting of pro-Japanese collaborator Park Jung-yang.

It was reported that this calligraphy piece was purchased and owned by Director-General Yu through an online auction.

(Photo: Yonhap News)