Authorities report the fourth stabbing that occurred this week.
PHILADELPHIA (WPVI) -- There has been an unusual streak of violence at two corrections facilities in Philadelphia's Holmesburg neighborhood.
Philadelphia police have released information on the fourth stabbing this week.
This latest stabbing happened at the Curran-Fromhold Correctional Facility just before 11:30 a.m. Saturday.
A 22-year-old man was stabbed once in the left side of the head.
Prison guards took him to Jefferson-Torresdale Hospital where he was placed in stable condition.
The other stabbings happened early this week at Riverside Correctional Facility on Tuesday and Thursday nights.
Police say a 35-year-old man was stabbed in the head, right eye and torso at around 6:30 p.m. Thursday.
He was taken to the hospital for treatment and is expected to survive.
Two inmates were attacked in separate incidents on Tuesday night, about half an hour apart.
A 36-year-old man was stabbed once in the right eye around 5:58 p.m.
A 23-year-old man was stabbed multiple times in the back and arms.
Both were taken to the hospital in stable condition.
No charges have been announced in these stabbings.