The driver was aged 18. His dead passenger was aged 17.
Three more young passengers, all female, are being treated for their injuries at Vachira Phuket Hospital after the horror crash on a sweeping curve in Phra Phuket Keaw Road, near the new Bangchak petrol station.
The youngest survivor is aged 16.
Kusoldharm Foundation rescue workers removed the injured from what remained of the vehicle.
The driver, a man, was already dead. All four women were taken by ambulance to the hopsital in Yaowarat Road, Phuket City, where one died soon after.
The road was dry at the time of the crash and speed appeared to be a factor, police said.
Kusoldharm rescuers needed ''jaws of life'' cutters to free some victims. The work took 20 minutes.
Police believe the Honda City struck the median strip then crashed on into the pole.
The driver was wearing a seatbelt and an airbag failed to save him.
Questions are likely to be asked about the care taken by parents of the dead and injured to make sure their children were safe.
The dead and injured have been named as:
Killed Hatsanee Wangtan, 18; Sutanee Tabtawee, 17.
Injured Sawaroij Sangtong, 18; Natsarin Suportnemhiran, 17; Supitsara Boonmee, 16.
A sad tragedy but one repeated all to often in Thailand. I really do wish traffic and highway police would do some meaningful speed enforcement.
Posted by NomadJoe on August 9, 2014 09:34