A teenage driver and her female passenger killed in an "horrific" car crash which left three men seriously injured have been named.

Stunned friends took to social media sites to express their shock, grief and sadness at the deaths.

Driver Shaya Rae Leigh, 18, of Reading Street, Swindon, was pronounced dead at the scene alongside the A419 outside the town. Passenger Kerry Staniford, 17, of Albion Street, Swindon, was taken to the town's Great Western Hospital, where she later died.

The single car accident, which happened at 5am on Saturday, has left two of the three male passengers fighting for their lives. Their grey Renault Clio careered 20 metres (65 feet) off the northbound dual carriageway, near its junction with the A420, into dense undergrowth. All three men, aged 20 and from the Swindon area, survived the plunge off the road which left the car extensively damaged.

A police spokesman said: "Two 20-year-old male passengers who were taken to Frenchay Hospital in Bristol are critically injured and in intensive care. Another 20-year-old male is being treated for serious injuries in Great Western Hospital, Swindon. Wiltshire Police have appointed family liaison officers to support the families."

Pc Jeff Rice, of the Roads Policing Unit, said: "This was an horrific incident and we would like to offer our condolences to the families of the two young women who sadly died. We are very keen to hear from anyone who was on the A419 near the scene at around 5am today. We would also like to hear from anyone with any information about the movements of the people in the car during Friday night and the early hours of Saturday."

Friends turned to Twitter to express their shock at what had happened. Poppy Trainer, tweeting using @PoppyJecolia, said: "They was at my party last night what the f*** RIP @ShayaLeighxo and Kerry Staniford! So much love for you girls ?" Shannon Deacon, added: "RIP Kerry Staniford and Shaya, both taken way too soon. Thoughts are with your families."

Alex, @onlyalexramos, tweeted: "So many young lives are being lost and it's really sad. RIP Shaya Leigh and Kerry Staniford." Friend Zaza, @PrincessZara_79: tweeted: "RIP Shaya Leigh such a shame. Her poor family & friends."

A Facebook site has also been set up simply described as a: "Tribute page for Kerry Staniford and Shaya Leigh, who were tragically killed on 18th May 2013 in a car crash."

Anyone with information is asked to call Wiltshire Police on 101 and ask for the Serious Collision Investigation Team.