Police identified the inmate who officials say died at the Nassau County Correctional Center as Nikita Pertsev, of Brooklyn.

On Wednesday, the 29-year-old inmate at the East Meadow facility suffered a medical emergency brought on by an overdose of an unknown substance.

Nassau County Executive Bruce Blakeman released a statement saying in part, "We are sorry for the death of one of our inmates who died of an overdose. There will be a full investigation to determine how contraband got into our correctional facility."

Nassau Correction Officers Benevolent Association President Brian Sullivan also says the officers who work at the correctional facility were sad to hear about the death of Pertsev. He claims an ongoing staffing crisis hinders the officers' ability to get ahead of drug issues within the jail.

"We need more bodies, we need more eyes and ears on the ground so we can find out where this contraband is coming from, bolster the gang investigative unity, to find out where it's coming from," Sullivan says "Root it out and get rid of it."

This death comes on the heels of a major raid at the jail where drugs and weapons belonging to inmates were found in September. Michael Sposato had just been appointed as corrections commissioner at that time.

Sullivan says those kind of facility searches have to be done on a routine basis to keep inmates honest.

News 12 previously reported that Sposato lost his job as sheriff in 2017 due to inmate deaths and accusations of mismanagement.

It is not clear what substance was inside of the jail that led to Pertsev's death.

An investigation is ongoing.