Police plan to decide this week whether to disclose the identity of the suspect in the stabbing attack against opposition leader Lee Jae-myung, officials said Monday.

The 67-year-old suspect, known only by his family name Kim, was formally arrested Thursday on charges of stabbing Lee, the chairman of the Democratic Party, in the neck with a camping knife in the southeastern port city of Busan two days earlier.

Lee is recovering following surgery at Seoul National University Hospital to repair a major vein in his neck.

The Busan Metropolitan Police Agency said its identity disclosure committee will convene Tuesday to determine whether to make the suspect's personal information public.

The current law permits the disclosure of the identity of suspects in violent crimes to meet public interest and people's right to know when there is sufficient evidence backing the crime.

Police plan to make the suspect's identity immediately public if the committee decides in favor of disclosure.

Officials said they questioned people Kim met on the day of his suspected crime and the day before and concluded he is highly likely to have acted alone without an accomplice.

Police also decided not to disclose any information on Kim's political party affiliation, officials said, citing the Political Parties Act, which prohibits an investigative organization from revealing such information obtained during the investigation process.

Police plan to announce their final investigation result on the case before the end of Thursday. (Yonhap)