OXFORD, Fla. -- A man woke up Wednesday morning and found his girlfriend's 2-year-old daughter being strangled by his 12-foot pet Burmese python, according to Sumter County sheriff's officials.

The fatal incident occurred at about 10 a.m. at a residence in the 1500 block of county Road 466 in Oxford, which is located about 60 miles northwest of Orlando.

The snake apparently escaped from its cage overnight and strangled the girl, who was also bitten on the forehead, Sumter County sheriff's deputies said. Charles Darnell, who owns the snake, stabbed the animal, which was wrapped around the girl's neck, and pulled the girl away before calling 911, deputies said.

Emergency workers could not revive the girl. The medical examiner was called to the Sumter County house, and an investigation into the death is ongoing.

Darnell also owns a boa constrictor, and the snakes have not been removed from the house, deputies said.

The 2-year-old girl's mother, Jaren Hare, was also inside the home at the time of the incident, deputies said.

Authorities remained outside the small, tan home, bordered by cow pastures Wednesday afternoon, awaiting a search warrant to remove the snake from the home. It was unclear if it was still alive.

Darnell did not have a permit for the snake, which would be a second-degree misdemeanor, said Joy Hill, a spokeswoman with the Florida Fish and Wildlife Conservation Commission. He has not been charged, but Lt. Bobby Caruthers of the Sumter County Sheriff's Office said investigators were looking into whether there was child neglect or if any other laws were broken.

Matt Harrison, a Critter Control employee who has worked with pythons for more than eight years, said the animals are extremely strong.

"A 12-foot snake is kind of like having a truck sitting on your chest. They have enough power not only to asphyxiate you, but to break bones as well," said Harrison, who added that stabbing a python would not force the animal to release its prey.

Harrison suggested throwing alcohol down the snake's throat or running hot water over it to get it to release its prey.

Harrison urged owners to be careful with pet pythons.

"Most (of) the time, as long as you're careful, you don't have anything to worry about, but occasionally, they can turn on their owners," Harrison said.

Harrison said attacks tend to be a feeding response, but he said it is important to keep cages secure and safe, especially when there are children in the house.

Harrison speculated that there are probably more pythons in Florida than anywhere else in the United States.

According to the Florida Fish and Wildlife Conservation Commission, pythons are a nonnative species to Florida, although some Burmese pythons have been found in parts of Florida.

An invasion of giant Burmese pythons in South Florida that made national headlines last year was "rapidly expanding" and expected to reach Central Florida, according to a University of Florida study.

"There's no part of this state that you can point at and say that pythons couldn't live here," researcher Frank Mazzotti said. "They're capable of incredible movement -- and in a relatively short period."

Most of the pythons were brought over as pets and then turned loose in the wild, he said.

Anyone who comes across a python is urged to call wildlife officials at 888-404-FWCC.