In a tragic incident early Saturday morning in the Bronx, a woman lost her life, and her teenage son sustained serious injuries following a brutal knife attack allegedly carried out by her boyfriend, police reported.

The victim, identified as 42-year-old Yesenia Hall, suffered fatal stab wounds to her neck and torso, while her 16-year-old son was injured in the neck and back. The attack took place around 6:30 a.m. inside their apartment on Sherman Avenue in the Highbridge neighborhood, according to law enforcement officials.

Authorities have identified the suspect as a 45-year-old man who, after the violent assault, changed his clothing and fled the scene. He was reportedly seen wearing a neon safety vest and a hardhat at a construction site located at 163rd Street and College Avenue.

Investigators have indicated that the attack stemmed from a domestic dispute.

The aftermath of the tragic event was evident, with a trail of blood marking the path from the apartment’s hallway to the building’s entrance, including a noticeable red smear.

A trail of blood stained the floor from the hallway outside the apartment to the building’s front doors, which included a red smear.

Family members clamored to get into the apartment but were held back by police.

“Oh my God, I want to go in there,” said one woman.

Relatives left a short time later carrying suitcases. One woman held a puppy wrapped in a brown blanket close to her chest.

Neighbor Shanae Headen, 33, said she was woken up by a commotion.

“I heard a lot of movements like somebody was thrown, you know, to the wall or something or somebody was moving furniture or something,” she told The Post.

“I heard [someone] saying … ‘No, no, no, no,’” she recalled, noting that the voice didn’t sound like an adult. “Maybe it was a teenager saying that.”