An elderly man has died after his van veered off the road on Queensland's Darling Downs and hit a tree.

The driver and sole occupant, aged in his 80s, was on Pechey-Maclagan Road near an intersection with the New England Highway south of Crows Nest when his van left the road and hit a tree on Tuesday morning.

The Jondaryan man died at the scene and investigations are continuing.

A man injured in a single vehicle crash on the Sunshine Coast on New Year's Eve, also died in hospital on Tuesday morning.

Police say the 21-year-old was freed from his car in a critical condition by emergency personnel after slamming into a tree at West Woombye.

Several hours earlier, a 33-year-old motorcyclist was killed when he struck a tree at Ipswich.

AAP