LEXINGTON, Ky. (AP) -- Authorities are investigating the death of a Lexington woman who died two days after a violent home invasion.

Police say robbers used a sledge hammer to knock in Sheree Burd's door Monday, punched her several times, and ransacked her house, according to WKYT-TV. The robbers have not been caught.

Burd was apparently found dead at her home on Wednesday.

Authorities say they're waiting for autopsy results before investigating the death.

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