A body found in an Indiana lake may be connected to Teleka Patrick, a Michigan doctor who mysteriously disappeared in December, ABC News reported.

Around 7 a.m. Sunday, a fisherman called police after spotting something floating in Lake Charles, located in Porter, Indiana. Once authorities arrived at the scene, they pulled a female body dressed in dark clothes out of the water.

Porter County Coroner Chuck Harris said the body showed "no obvious external signs of trauma" but that, due to decomposition, "it's hard to tell for sure."

Harris told ABC News an autopsy is scheduled for Tuesday and should be confirmed by Wednesday.

Though officials said they could not officially identify the body until an autopsy was performed, Patrick's family released a statement following the news.

"Our family was informed that a body was found that may be our daughter Teleka Patrick," the family said. "We are waiting for official confirmation from the Kalamazoo Sheriff's Department and have no comment at this time. Thank you for your continued prayers -- we ask that you respect our privacy at this difficult time."

Patrick, 30, was a first-year medical resident in psychiatry at Borgess Medical Center in Kalamazoo, Michigan. She was last seen on Dec. 5 in surveillance footage from Radisson Hotel -- located just minutes from her home.

On the same night she went missing, police found her car in a ditch about 100 miles away. Her wallet was inside, but the keys were missing. After co-workers reported on Dec. 6 that she hadn't shown up to work, police found Patrick's cell phone and purse at the hospital. 

Later in December, investigators also found videos on YouTube featuring Patrick, seen talking and singing romantically to an unidentified person.