Indiana State Police say a fisherman on Lake Charles in the town of Porter reported something suspicious Sunday morning. They say divers helped recover a female body dressed in dark clothing.
Police say an autopsy will be conducted this week to positively identify the body.
Indiana State Police, the FBI and Michigan police searched the same lake on Jan. 23 for Dr. Teleka Patrick of Kalamazoo, Mich., but didn't find any evidence related to her disappearance. Her car was found abandoned by an Indiana trooper on Dec. 5 along Interstate 94 and near the lake about 15 miles east of Gary.
The 30-year-old doctor failed to show up for work as a resident on December 6 in Michigan. Her car was found in Porter, Indiana, which is 100 miles away.
Surveillance footage from the night she disappeared shows Patrick trying to check-in at the Radisson Hotel. Authorities say she was last seen boarding the hotel's shuttle bus that took her to her car, which was parked at the Borgess Medical Center where she worked in Kalamazoo, Mich.
Her abandoned car was found with a flat tire off Interstate 94 hours later. Inside: a credit card, some cash and her driver's license.
Her bizarre disappearance had investigators in two states stumped after their all-out searches have turned up nothing.
The Patrick family is offering a $15,000 reward for any information leading to their daughter's safe return.
The Associated Press contributed to this report.