A Dunedin beer festival worker was left with a severe concussion after being picked up and dumped on his head.
Senior Sergeant Anthony Bond, of Dunedin, said police responded to reports of a man working at one of the Dunedin Craft Beer Festival stalls being assaulted about 6.50pm on Saturday.
A 20-year-old man attending the festival at Forsyth Barr Stadium ran towards the 19-year-old employee and picked him up off the ground.
He then dropped the employee onto his head, which caused a severe concussion.
The two men were not known to each other.