An investigation is underway after someone posted a rap video shot inside the DeKalb County Jail.

Someone posted the video called "Thuggin' live from DeKalb jail" on YouTube last Saturday.

DeKalb County Sheriff Jeffrey Mann said the inmates recorded the video from the jail's video visitation system.

Mann saidhe hopes they enjoyed their 15 minutes of fame.

"I don't see any crime right here," said Shy Cole after Jones showed him the video.

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Jones also showed it to former corrections Officer Devontae Thomas who says the video is a serious security breach.

“They doing something they really not supposed to be doing,” Thomas said.

The 2:27 video shows the inmates wildly performing to a song by rapper Future. One man sprays some sort of liquid. Another takes off his shirt. Then flames from an inmate's lighter can be seen.

"That lighter can be used to light a fire. It can be used to create a diversion," said former jail Lt. Kyle Jones.

He is currently running for DeKalb County Sheriff.

“At some point and time somebody's eyes should have seen that and some action should have been taken,” said Jones.

Mann confirmed the video was shot inside his jail using the video visitation system.

The video visitation system allows callers to see one another without having to be in the jail.

He says the inmates will be disciplined and prohibited from using the system.

Jones wants to take it one step further.

“The system has to be overhauled to prevent this from happening,” Jones said.

Thomas said what's even more disturbing is the video shows the inside of the jail.

“The layout of showing the building is just not a good thing,” Thomas said.

The sheriff says the system is only supposed to be used for people who have been registered and approved to use it.

He said his office is reviewing the system to minimize future breaches.

Mann said this won't be tolerated.