(Credit: Winter Haven Police Department)

A Florida mother has been arrested and charged with second-degree murder for the shooting death of her daughter after what she says was a case of mistaken identity.

Adele Bing, 52, had a "heated argument" at her home with her boyfriend James Lane, 39, on Monday, which included her allegedly hitting him with a gun, according to the Winter Haven Police Department.

Lane went to a hospital to be treated for head injuries. Hospital officials contacted the Winter Haven Police and while officers were interviewing Lane at the hospital, a call came in about a shooting at the same address, police said.

At about 8:45 p.m., Bing's daughter Ruby Bing, 25, went to her mother's home with her infant, according to police.

"Ruby Bing was at the door of her mother's residence holding her 4-month-old baby while knocking on the door," Winter Haven police said in a news release. "Adele Bing was still upset about the argument between her and Lane when her daughter knocked on the door. Adele Bing thought the person knocking was Lane."

Police said Adele Bing armed herself with a baseball bat and a handgun and fired a shot as she opened the door. She shot hit her daughter in the upper chest and she died at the scene. The baby was not injured.

Bing was arrested and charged with second-degree murder and child abuse. She was taken to Polk County Jail.

Authorities did not immediately know if Bing has an attorney.