A 75-year-old grandmother suffered a violent assault after she requested two women to clean up after their dogs in Brooklyn earlier this week, an incident that only ceased when a nearby Navy veteran intervened, as captured in a disturbing video.

Linda Scott was subjected to multiple punches to her face and was knocked onto her front lawn by one of the dog owners in a confrontation that erupted shortly after 9 a.m. on Monday. This altercation took place on President Street near Troy Avenue in Crown Heights, according to Ring camera footage obtained by The Post.

Even as Scott lay on the ground, the attacker, identifiable by her pigtails, continued to punch and stomp on her head, as the distressing footage reveals.

A neighbor, who asked to be identified only as Mr. Barnett, aged 37, recounted that he had just parked his car following a morning gym visit when he noticed a “commotion” occurring in front of the elderly woman’s residence.

“It appeared to be a dispute over the dog poop or something similar… an exchange of shouting,” Barnett, who now works as a train conductor, explained on Friday. “When the young woman in red came around the corner… the way she approached Miss Linda indicated to me that she was about to do something harmful to her.”

“I saw the gate opening, and then the young woman approached and began assaulting her. That’s when I exited my car,” Barnett recounted.

He pulled the ruthless attacker off the senior and then scrambled to close the gate as the two dogs scurried around. 

“The victim’s son showed up and she told him, ‘She hit me,’” the good Samaritan said. “And that’s when it escalated again.”

“She was screaming, like it was an agonizing scream like she was in pain, but I wasn’t paying too much attention to it,” Barnett added. “I was just trying to contain the environment and get the people off of her property.”

Scott was taken to One Brooklyn Health-Interfaith Medical Center, where she was listed in stable condition.

Barnett described the victim as a “staple in the community” who had “been here for years.”

He said he hopes the attacker “grows up” and does “the right thing” by turning herself in. 

“[This] could have easily been a conversation,” he said. “It’s not looking good for the next generation coming up. Like, that’s not a great example.”

But he shied away from calling himself a hero. 

“If you count that as being a hero, then I guess my naval experience, my law enforcement experience means nothing,” Barnett said. “It’s just doing the right thing, looking out for the neighbor – and not even just the neighbor but looking out for another human being.”

Just before the beatdown, one of the women accused the senior of throwing ammonia on her dog, the clip shows. 

Scott admitted to pouring ammonia on a vacant lot next to her home, which is often used by dog owners who don’t clean up their pets’ mess, News 12 reported. 

But her son, Matthew Scott, told the network his mom only wanted to keep the smell away and never used the cleaning fluid “as a weapon.”

“The young lady had no business beating me like that,” Scott told the station. “No business beating me or any other older person like that. Anybody. Period.”

The assailant was still on the loose Friday, cops said.