Published: Oct 07, 2010 4:27 PM EDT
Updated: Oct 07, 2010 1:28 PM EDT

DELRAY BEACH, Fla. (AP) - An 82-year-old man from Delray Beach is being questioned after he told authorities he beat and killed his girlfriend during a fight at their home.

The unidentified man is at the Delray Medical Center where he's being held for observation. Charges were not immediately filed against him.

The Palm Beach County Sheriff's Office reports that the man called authorities Thursday morning and said he had beaten his girlfriend. When rescue workers arrived, the 77-year-old woman was found dead.

Sheriff's Office spokeswoman Teri Barbera told The Palm Beach Post the couple had been living together for at least five years. The man has no criminal history in the state and deputies have never been called to the couple's house before.