A representative from the South Korean Ministry Of Defense says the investigation of K-pop singers Sangchu Of Motor Mouth And Se7en, accused of visiting a massage parlor after curfew while serving in the South Korean army, will not be wrapped up on Friday as was originally reported.

"We can't say anything in detail about the investigation process. The investigation on the celebrity recruits is still undergoing," the rep told the publication Newsen.

"We don't know when it will end."

According to the army spokesperson, there was always a possibility that the investigation of Sanchu and Se7en could drag on past the previously stated deadline.

"There were reports saying that the investigation results would be revealed in early July or on July 5, but those dates were always subject to change," the rep said.

"Se7en's onsite inspection is part of the investigation. If we set a date and try to match it, there will be parts that will be left out. We're thoroughly investigating in detail to keep that from happening."

On Monday, Se7en and Sangchu were back at the now infamous massage parlor, again not in uniform.

Only this time, it was apparently to assist in the investigation, a source told Star News.

"Sangchu and Se7en came back to the particular massage parlor with other military persons concerned, wearing regular clothing like the time they were first spotted," the source said. "They reenacted what happened on that night."

Trouble first started for the two singers when cameramen from the Seoul Broadcasting System (SBS) program "Scene 21" appeared to capture the soldiers sneaking out of their living quarters and drinking before visiting the massage parlor.

The soldiers were seen leaving their hotel at 10 p.m. on the evening of June 19, dressed in civilian clothes, a breach of military protocol, according to the publication Soompi.

The episode aired last week.

On Tuesday, the national army's Defense Media Agency downplayed the incident in an interview with CJ E&M enewsWorld, claiming the singers were visiting the erotic establishment out of necessity.

"Se7en and Sangchu visited the massage parlor for medical purposes," said a representative from the government PR agency.

Lawyer Lee Jae Man says the punishment for the singers could include jail time.

"If they left [their living quarters] without permission, they can be sentenced up to a year in prison and fined up to [$2,600] if the Military Criminal Act is used," Lee said on the South Korean program "Good Day."

"If the Military Personnel Management Act is applied, they'll be punished with one of the following--being demoted, sentenced to a prison for soldiers, a limit placed on their vacation days, or being confined in a room to reflect on their actions," the lawyer said.