DOVER — An inmate charged in the death of correctional officer Steven Floyd in a prison uprising a year ago attacked and injured four guards Friday night at Sussex Correctional Institution in Georgetown, according to the officers’ union leader.

Geoff Klopp, president of the Correctional Officers Association of Delaware (COAD), said one of the officers required medical attention at a nearby hospital.

“Ironically, the inmate involved in this battle was also involved in the Floyd case, being transferred to SCI after the murder of Steven Floyd,” Mr. Klopp said Monday.

“It just goes to show you just can’t move your problems around. They always pop up, wherever they go,” he added.

Mr. Klopp said the attack occurred despite the addition of a security officer in the “receiving room.” The additional officer was necessitated by the influx of inmates from the James T. Vaughn Correctional Center near Smyrna following the Feb. 1, 2017, riot.

During the incident Friday no fewer than four correctional officers were dispatched from various locations to subdue an inmate who refused to return to his cell.

The inmate was a resident of the maximum security unit and had been performing “duties” on the tier, Mr. Klopp said.

When the inmate was instructed to return to his cell, he refused and took an aggressive stance. He then began throwing punches, Mr. Klopp added.

After an attempt to pepper-spray and subdue him, the inmate allegedly struck and hit an officer in the face, causing an injury and breaking the officer’s glasses.

Eventually, the inmate was fully subdued and returned to his cell uninjured, Mr. Klopp said.

“The effects of the murder of Steven Floyd are still being felt throughout the corrections system in Delaware,” Mr. Klopp said. “SCI was not properly staffed to handle this situation. Roving security is never in the right place at the right time, no matter how hard we try.

“The same problem persists — we need corrections officers in every facility and there is only one way to get them: pay them what the position and the work requires. Give them a reason to stay once they’re here. Protect them while they’re here.”

It’s unclear why an inmate charged with murder and rioting was out of his cell and performing “duties.”

The DOC confirmed an inmate was involved in an assault on correctional officers Friday at SCI.

They also noted the correctional officers have been treated for their injuries and an investigation into the incident is ongoing.

The name of the inmate was not released.