SEOUL (Kyodo) -- South Korean President Yoon Suk Yeol was indicted on Sunday over charges of insurrection relating to his short-lived imposition of martial law last month, according to a local report.

With the indictment, Yoon has become the first sitting president in South Korea's history to be indicted, Yonhap News Agency reported.

Yoon was detained on Jan. 15 for questioning over his declaration of martial law in early December and was formally arrested days later.

The move comes just one day before his detention period was set to end, according to the report.

The news agency cited the prosecution team investigating the case as saying that they had reviewed the evidence and based on the comprehensive review, it was determined that indicting the defendant was appropriate.