10:45 a.m. Update:  Lamb has been located safe. She was found asleep with Leroy, police said, and nothing criminal was determined.

8:00 a.m. Update: A reported battery Tuesday night has now turned into a potential missing persons case for the Jacksonville Sheriff's Office.

Police were called to the intersection of Almira and Oliver streets about 9:20 p.m. where witnesses told police a woman was being beaten by a man and that she was yelling for help.

But when police arrived, the woman was gone.

"Witnesses said she appeared to be forcefully dragged away from the area she was at," detective D.E. Slayton said.

Witnesses told police the man threatened to kill the woman, though one said those threats did not seem sincere. 

Police said they believe the woman to be 20-year-old Shawna Lamb of the 5700 block of Dickson Road.

Lamb is a 5-foot-4, 160-pound white female with brown eyes and brown hair and was last seen wearing a green top and blue jeans.

"She had been with a new boyfriend known only as 'Leroy,'" Slayton said.

Police said he was a potential suspect and are attempting to locate him as well.

Anyone with information can contact the Sheriff's Office at (904) 824-8304 or CrimeStoppers at (888) 277-TIPS (8477).

clifford.davis@jacksonville.com, (904) 359-4207