Updated

Phoenix police say they've made an arrest in the killing of a Roman Catholic priest and the beating of a second priest at a church in the city's downtown.

Police spokesman Sgt. Steve Martos announced the arrest in a tweet Monday morning and said more information would be released later in the morning.

The priests were attacked in the rectory of the Mother of Mercy Mission Wednesday night. The Rev. Kenneth Walker was shot and killed and the Rev. Joseph Terra was badly beaten.

Police said Terra told them the next day the suspect was a white male in his 40s. The 56-year-old Terra is expected to make a full recovery.

A requiem Mass is set for Monday morning for the 28-year-old Walker at another Catholic church in Phoenix.