The four people who died in a two car collision on the A420 in Oxfordshire last night have been named locally on social media. 

Tributes are already flooding in for Brogan Warren, Sam Kay, Nicoletta Tocco and Krop Jones and it is believed the group were travelling back from Veg Fest in Bristol when their blue Citroen Saxo collided head-on with a black Mercedes.

The incident took place between the Watchfield roundabout and the Highworth turn off of the Shrivenham bypass at around 11.15pm.

The Citroen Saxo was travelling towards Oxford while the Mercedes was travelling in opposite direction when the two vehicles collided head on.

Thames Valley Police said it is understood the group of friends were all in their mid-twenties and from Northampton. 

One tribute to Brogan Warren on social media reads: "I'm still completely in shock. What a sad, sad day. R.I.P my beautiful, shining star! I'm absolutely heartbroken and don't even know what to do with myself right now.

"I can't get it through my head that I'll never see your beautiful, smiley face again and I'll never get to dance and go crazy at events with you again!

"You were one of the most beautiful, kindest people I've ever met, and it breaks my heart knowing that I'll never see you again.

"I will never, ever forget all the beautiful words you said to me, I will always think about you Brogan."

The three occupants of the Mercedes, the male driver, a female passenger in her thirties and a three-year-old boy from Swindon were all taken to the John Radcliffe Hospital in Oxford where they are being treated for their injuries which are not, at this stage, believed to be life-threatening.

“This was a terrible incident in which four young people have lost their lives," said Detective Sgt Gavin Collier, of Thames Valley Police's Serious Collision Investigation Unit at Bicester.

"We would urge anyone who was driving in the area last night and saw either of the vehicles prior to the collision to get in contact as they may have information which could help us with our investigation into the circumstances which led up to this tragic collision.”

A spokesman for the South Western Ambulance Service said: “We were called at 11.15pm to a report of a two car collision.

“We sent a number of vehicles and a doctor was also in attendance.

“Four people were sadly confirmed dead at the scene. Three others, two adults and a child, were taken to the John Radcliffe Hospital in Oxford with serious injuries.”

Any one with information please contact Det Sgt Collier via the Thames Valley Police Enquiry Centre on 101 quoting URN 1546 22/5 or contact the independent charity Crimestoppers anonymously by calling 0800 555 111 or online at www.crimestoppers-uk.org.