WILLIAMSPORT, Pa. - A man floating on a central Pennsylvania river was mistaken for a drowning victim — until he sat up.

WNEP-TV reports police and a coroner arrived at the scene Thursday along the Susquehanna River near Williamsport.

Onlookers reported seeing the man floating face-up in a lifejacket just below a dam. The area has seen drownings before.

Turns out the man had fallen asleep while cooling off on a hot summer day.

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Swimmer Joseph DeAngelo says he had no idea what was going around him until a dragonfly landed on his nose. Then he sat up.

DeAngelo apologized for the confusion, but says he was living life the best way he knows how.