A 64-year-old grandma was knocked to the ground and injured when a masked man forced his way into her home Monday night.

Around 11 p.m. the woman was sitting with her 20-year-old grandson in the living room of her home on Morningside Drive when the doorbell rang. She went to answer it, believing it might be a family member, according to Newton County Sheriff's Public Information Officer Cortney Morrison.

However when she opened the door, a black male, around 5-feet-5-inches tall, wearing all black with a black bandana over his face forced his way into the home, shoved the woman to the ground and pointed a handgun at the grandson.

The grandson ran and locked himself in a different room. Although the masked gunman attempted to go straight to the grandson, his grandmother grabbed onto the gunman and struggled with him, sustaining minor injuries in the process, according to Morrison.

Eventually the gunman made it to the grandson's locked room and forced his way inside. When he made entry he saw the grandson was on the phone. Morrison said the grandson said the gunman appeared "spooked and scared" and ran out of the home.

Investigators processed the scene and collected evidence. The incident is still very much under investigation. Anyone with information is asked to contact the sheriff's office at (678) 625-1400 or online at www.newtonsheriffga.org. All tips can be given anonymously