The search for two people missing in a remote area south of Alice Springs continues with further aerial searches today.

Claire Hockridge and Phu Tran remain missing and are believed to be severely dehydrated, having been stranded in the outback for the past 13 days.

Police search efforts were ramped up with two helicopters deployed at first light today to cover a search area 23kms from the Stuart Highway where it is believed the pair may be.

One of the three missing people, Tamra McBeath-Riley was located during the aerial search yesterday where police found the vehicle the trio were travelling in, bogged in the Hugh River.

Ms McBeath-Riley was found in good condition, having kept hydrated by boiling and drinking ground water found in the area.

She was transported to the Alice Springs Hospital for observation.

No further information is available at this stage.