SA Christmas road toll revised down

South Australia's Christmas holiday road toll has been revised down after the death of a man on New Year's Eve was found to have been caused by a medical issue.

The man crashed into a tree on the South-Eastern Freeway in Monarto South, east of Adelaide, and died a short time later, police said.

SA's final holiday road toll now stands at two while the state's final road toll for the year is 102.