World boxing champion Caleb Plant’s mother was shot dead after reportedly pulling out a knife on a police officer.

Fox News reported that, according to the Tennessee Bureau of Investigation, Beth, 51, was being transported by paramedics to the hospital when she pulled a knife from her backpack.

The driver of the ambulance pulled over and called the police.

When police officers from the Cheatham County Sheriff’s department arrived, Beth reportedly brandished the knife on a deputy, who shot her.

Beth died later at the hospital.

Caleb acknowledged the passing of his mother on his social media saying: “Love you forever and always momma. You always said “work hard bubba” and I did. I know that we spent a lot of time wishing the relationship we had was different but you was still my momma. We both wished we could start from scratch so we could go back and you could have a fresh start with me and Maddie.

“Regardless you was one of the sweetest ladies I’ve ever come across. You had your demons but you’d give the shoes off your feet and your last dollar to someone who needed it less than you.

The undefeated champion also lost his 1-year-old daughter, Alia, in 2015, when she died after being born with a brain abnormality.

He continued: “I love you momma and I know you are up there with Alia now and her and grandma finally get to spend time together like we talked about way back.

“You are the first one out of all of us to see what Alia is really like so make the most of that and kiss her up and tell her that her daddy loves and misses her.

“I know in the end it’s your demons we always talked abt that got the best of you.”

Plant won the IBF super middleweight title in January with a shocking win against Jose Uzcategui.