PALM HARBOR, Fla. -

A man is dead after the branch from a falling tree impaled him while he was doing yard work.

Pinellas County Sheriff's deputies say 63-year-old Dan Paul Butts and his girlfriend Beverly Drew were clearing trees in their back yard Monday afternoon.

The Tampa Tribune reports Butts cut a tree with his chainsaw and tied a rope around it. Drew got into a Ford SUV and started pulling the tree.

Deputies say she heard a scream, stopped the truck and saw the tree had landed on Butts, impaling him.

Drew called 911 and tried giving CPR. Emergency crews pronounced Butts dead.

The sheriff's office says the death appears accidental, but an investigation continues.