2 p.m. UPDATE: Police say they are continuing to try to make contact with the man.
Pittsburgh Public Safety says SWAT is in Troy Hill in the area of Lowrie and Croft Streets.
KDKA Radio LIVE
They say a man is barricaded inside a residence and believed to be armed.
Pittsburgh Regional Transit buses are not operating around the area during the incident.
No other information is known at this time.
This is a breaking story and will be updated. a