According to information provided by Allegheny County Police, just after 4 a.m., they were called to the 100 block of Margaret Street.
Once on the scene, they found a man who had been stabbed.
He was taken to the hospital in critical condition.
Allegheny County Police Homicide Detectives are investigating.
He was transported from the scene on Margaret Street.
Source: Man in critical condition after stabbing in Mt. Oliver