The search is resuming again this morning for missing 24-year-old man Jesse Leith, according to SA Police.
Mr Leith was involved in a single car rollover on Jacksons Hill Road at Gumeracha about 1.30am on Wednesday 25 May.
The silver hatchback was empty when police arrived and a subsequent search of the area with the assistance of Dog Operations failed to locate Mr Leith.
Police and family members are concerned that he may be seriously injured as a result of the crash.
Jesse Leith is described as Caucasian, 178cms, 85kgs, slim build, light brown unkept shoulder length hair. He was wearing all black clothing.
A search of the area yesterday and last night failed to locate Mr Leith.
The search will resume this morning, with assistance from local patrols, STAR Group, SES volunteers and members of Mr Leith's family.
Police have received several reports from members of the public who spotted Jesse Leith and it is believed he may be heading for the Riverland.
Police urge anyone who may have seen Jesse Leith, given him a ride or has information on his whereabouts to call the police assistance line on 131 444.
