BOISE, Idaho (AP) — Idaho's prisons chief says steps have been taken to bolster security at the agency's headquarters in Boise after the fatal shooting in March of Colorado's prison's director.

Idaho Department of Correction Director Brent Reinke said Thursday that armed security guards have been moved to the first floor of the agency's main office building. Reinke also informed the Board of Correction that more mirrored windows have been installed throughout the office to better monitor traffic.

Reinke says the agency is trying to be more vigilant, aware of surroundings and not taking safety for granted. In March, Colorado's corrections chief Tom Clements was gunned down at his home near Denver. Colorado authorities believe the shooter was a former inmate released early because of a clerical error.