Missing SA man's body found

The body of a South Australian man reported missing has been found in the state's south east.

The man and his Harley Davidson motorbike were on Monday afternoon found in trees off the Southern Ports Highway, south of Mt Benson.

The 49-year-old, who was last seen riding his motorcycle on Saturday night, was reported missing on Monday.

Police are treating his death as a fatal collision, with the State's road toll rising to 92 compared to 83 at the same time last year.