A man has been hospitalized in critical condition after a shooting in Pittsburgh's Bedford Dwellings neighborhood.

Just before 8 p.m. Sunday, Pittsburgh police officers from Zone 2 were dispatched to the 2500 block of Chauncey Drive for a single, four-round ShotSpotter alert.

While officers were en route to the scene, a man with a single gunshot wound to his chest arrived at the Zone 2 police station after driving himself there. 

EMS personnel subsequently transported the man to an area hospital.

A preliminary information suggests that the suspect fled the scene on Chauncey Drive in a vehicle, heading north, towards the McKees Rocks area.

Officers are reviewing any available camera footage and interviewing witnesses in the area as the investigation remains ongoing.

Just hours later, police were called back to the area for a separate incident. Around 11:45 p.m., police said they received a ShotSpotter alert from the area of Bedford Avenue. 

Officers found a man at the scene with a gunshot wound to his head. He was rushed to the hospital in critical condition. 

Police are looking for a suspect, who was able to run away from the scene before officers arrived. 

Both incidents are under investigation,