Police in South Jersey are investigating two separate homicides that took place over the weekend, leaving a 44-year-old woman and a 27-year-old man dead.

The woman, identified as Erica S. McNair by the Cumberland County Prosecutor's Office, was shot in the head early Saturday morning while on her front porch on the 200 block of Walnut Street in Bridgeton. Police were called shortly after 1:30 a.m., and McNair was taken to Inspira Medical Center in Vineland and then to Cooper University Hospital. She later died from her injuries.

Police have determined that McNair was on her porch with two other people, and that after multiple gunshots were fired, two unknown people were seen fleeing the scene. Investigators recovered numerous shell casings, and report that they've had "difficulty obtaining cooperation from witnesses." Anyone with information is asked to contact  Detective James Riley in the Prosecutor's Office at 856-982-6256.

And in a separate case late Saturday night, a man was shot in the head and killed while on his front lawn on the 100 block of East Centre Street, near South Broad Street, in Woodbury. The victim, whose identity has not been released pending notification of family, was pronounced dead at the scene.

Witnesses told police a suspect fled on foot. Anyone with information is asked to contact the Gloucester County Prosecutor's Office at 856-498-6238 or Woodbury City Police at 609-352-3919.

A spokesman for the Prosecutor's Office said the shooting is "not believed to be random" and there is no known threat to public safety.