A 59-year-old woman was killed by a pack of feral hogs outside her home in Texas

A 59-year-old woman was killed outside of her Texas home in a rare assault by a pack of feral hogs.

Christine Rollins, a caretaker from Chambers County, Texas, was found dead by one of her clients in the yard between her car and her front door, the Houston Chronicle reported.

Rollins "suffered a severe head injury and several other injuries on her body consistent with animal bites," according to the Chronicle report. Her death was ruled an accident Monday after the Jefferson County Coroner's Office determined the cause of death was by feral hog assault.

Feral hogs are largely nocturnal, according to the Texas Parks and Wildlife Department. Chambers County Sheriff Brian Hawthorne told reporters Rollins likely arrived home while it was still dark, while the animals were still roaming around her 10- to 12-acre property, which consist of wooded areas and pasture where the hogs took over.

"It looks like she got out of her car and locked it," Hawthorne said during a news conference. "[She] was probably trying to make her way to the front door when it appears these animals must have come along."

He described Rollins' death as "tragic" and "very rare."

"In my 35 years, I will tell you it's one of the worst things I've ever seen," Hawthorne told reporters.

Feral hogs, officially classified an invasive species in the state, have been terrorizing residents in rural Texas, destroying property and posing as a danger to people. The problematic animals made national headlines after an Arkansas man's tweet went viral, where he defended his need for assault weapons to protect his children from "30-50 feral hogs."

In the state of Texas, residents can legally get rid of the invasive species by means of shooting, trapping, snaring and the use of specially trained dogs, according to the Texas A&M AgriLife Extension.