The driver and a passenger fled the scene of car crash that killed two teenage girls on the Monaro Highway in Canberra's south on Sunday morning.
ACT police say a Toyota sedan left the highway and crashed through a row of temporary fencing before hitting a tree near Lanyon Drive at Hume.
A passer-by found the wreck and alerted emergency services who found two girls, aged 14 and 15, dead in the car about 8:10am.
Police say the driver and another passenger, also teenagers, left the crash site and were found at homes later in the day.
They have received medical attention and are helping police with their investigation.
Detective Acting Inspector Brian Tadic says police are still trying to determine what caused the crash and what role the wet weather may have played.
"Obviously the impact was quite severe so speed may have been a factor," he said.
"The car has sustained extensive damage to the point where it is unrecognisable.
"It's hard to tell what type of car it is."
It's not known what time the crash occurred, but it may have been hours before emergency services were alerted.
Police urge anyone who may have seen the car leave the road, or who drove past the crash site and saw the car before 8am, to contact Crime Stoppers.
The two deaths bring the ACT's road toll for the year to 14.
That's already the highest number recorded in the past six years, eclipsing the 11 deaths recorded in 2021.