Two inmates are hospitalized after a fight broke out at the Utah State Correctional Facility in Salt Lake City Tuesday night.

The confrontation occurred in the Bear housing facility, a male general population housing area of the prison, Department of Corrections spokeswoman Kaitlin Felsted said.

Six people were involved in the brawl, two of whom were taken to a nearby hospital. One of the injured men was airlifted to another hospital, Felsted said.

What caused the altercation remained unknown late Tuesday. The incident is now under investigation by the Utah Department of Corrections Law Enforcement Bureau.