A home-built plane that had been missing for four days in southern Michigan has been found along with the body of the 83-year-old pilot, police said Thursday.

The plane, which was missing since Sunday afternoon was spotted by a Michigan State Police helicopter in woods about 2 miles north of Dowagiac on Thursday afternoon, the Dowogiac Police Department said.

Police identified the deceased pilot as Richard Martin and said his body was discovered at the crash site.

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A missing home-built plane has been found in southern Michigan with the pilot dead at the crash site. 

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The cause of the crash was not immediately clear, investigators said.

Authorities had been searching for Martin and his small, home-built Sonex plane since he failed to return after taking off from Dowagiac Municipal Airport around 11 a.m. Sunday.