Police are investigating a video which appears to show a horrific bottling at the T in the Park music festival.
The shocking footage shows a group of festival goers in an altercation in one of the campsites at the event in Strathallan, Scotland.
One of them then picks up a bottle and smashes it into the face of another with a sickening sound.
The identities of those in the video are not known.
The festival was heavily criticised on Monday has traffic caused huge delays for people leaving the site.
@DonSt0ppable i've taken a cigarette break and i don't even smoke i'm jus screaming in the car park— takezō (@orochimanni) July 13, 2015
So it's seemingly going to take 2 hours to get out of the T in the Park field and we are just on the bus now 😢— Jack (@JHamilton_09) July 13, 2015
t in the park disabled parking is a shambles we've been sent to every car park on the site multiple times by about a 20 staff. Great job— Gemma Lumsdaine (@gemmalumsdaine) July 12, 2015
On Saturday a man was found dead in a toilet at the festival. He was later named as 36-year-old Andrew West and his death is being treated as unexplained.
A T in the Park spokesperson said: "We are extremely saddened by this news and our thoughts are with the family at this time."