Minnesota corrections officer attacked, killed by inmate, officials say

A corrections officer at a Minnesota state prison was killed Wednesday by an inmate, officials said.

Officer Joseph Gomm, of the Minnesota Correctional Facility in Stillwater, was attacked by the inmate -- identified as Edward Muhammad Johnson -- around 1:30 p.m., the Minnesota Department of Corrections said.

Gomm, an officer at the prison for 16 years, was taken to a hospital, where he was pronounced dead.

"Joseph gave the ultimate sacrifice while working to protect the citizens of Minnesota," Sarah Fitzgerald, a spokeswoman for the agency, said.

Edward Muhammad Johnson, 42, is the inmate suspected of killing a corrections officer at the state prison in Stillwater on July 18, 2018. Johnson is serving a 29-year sentence for the 2002 murder of his girlfriend at his Bloomington apartment. (Courtesy of the Minnesota Department of Corrections)

Edward Muhammad Johnson, 42, is suspected of killing a corrections officer at the Minnesota Correctional Facility in Stillwater on July 18, 2018.  (Minnesota Department of Corrections)

Johnson, 42, has been serving time for a homicide conviction.

The correctional facility, and surrounding prisons, were placed under lockdown until officials determined the incident was over.

Fox News' Amy Lieu contributed to this report. 

Nicole Darrah covers breaking and trending news for FoxNews.com. Follow her on Twitter @nicoledarrah.