A woman was found alive stuck inside her freezer today in Tulsa, Okla.

Theresa Christian, 59, may have climbed inside of her deep freezer over the weekend to seek shelter from bad storms and tornadoes, according to Tulsa police officer Jillian Roberson.

Once inside, Christian apparently lodged herself in the freezer and was unable to escape. She may have been there from Friday or Saturday until today, Roberson said.

This morning, Christian's son arrived at the woman's apartment searching for her and heard moaning coming from near the freezer chest. He then found his mother incoherent and with severe frostbite on her legs.

There were no locks or latches on the door that could have accidentally engaged, investigators told ABC News affiliate KTUL. Police said evidence inside suggests that she did try and struggled to get the door open.

Christian was taken to a nearby hospital in severe condition, according to Roberson. They have not yet been able to talk with her to understand how or why she got stuck in her freezer.

Investigators haven't noticed any signs of foul play, but they're working to completely rule that out.