A spokesperson for the Federal Bureau of Prisons tells TMZ ... the operation at the federal jail is a collaboration between the FBOP, the U.S. Department of Justice Office of the Inspector General, and other law enforcement partners as part of "intensive efforts to improve conditions" at the controversial facility.

The rep said the agencies' "interagency operation" was "designed to achieve our shared goal of maintaining a safe environment for both our employees and the incarcerated individuals housed at MDC Brooklyn."

While an FBOP spokesperson confirmed the operation was preplanned, they noted there was "no active threat."

Though, as you can see in the video above, both the FBI and DEA were seen stationed outside MDC Brooklyn.

No additional details were shared in order to maintain the safety and security of those involved ... though, they said more information would come once the operation was concluded. Nine inmates were charged last month for various attacks this year at the jail, according to The Associated Press, including two fatal stabbings.

This update comes after Diddy's attorney, Marc Agnifilo, had previously spoken out against the conditions at MDC Brooklyn. Earlier this month, the attorney noted the "roughest part" of the Bad Boy Records founder's incarceration had been the food.