STERLING, Kan. (AP) — An undersheriff who was shot when he tried to stop a man on a federal firearm charge is expected to recover.

The Kansas Bureau of Investigation and Rice County Sheriff's office said Wednesday 48-year-old Rice County Undersheriff Chad Murphy's condition has improved from critical to serious.

Murphy was shot Monday by 37-year-old David Madden near Sterling. Authorities say Madden then shot and wounded Sheriff Bryant Evans and killed his father before killing himself during a standoff.

Madden was under investigation in the disappearance of 22-year-old Megan Renee Foglesong, of Oneida, Illinois, who was last seen in Rice County in 2015.

The KBI said in a news release Wednesday that investigation continues but no new leads or information have emerged from this week's shooting.