A "pitch invasion" resulted in the Varsity Cup match between the Madibaz and Maties being called off in Port Elizabeth on Monday.
Eight minutes into the second half, the game was stopped after unrest broke out at the Nelson Mandela University's south campus.
According to Netwerk24, disorder began when students from the student representative council tried to force their way into the university's box.
Fights broke out when students reportedly stormed the stairs and attempted to kick open the door, and security guards stepped in.
Official: Match between FNB Madibaz and FNB Maties have been stopped due to pitch invasion. The final score for the match is FNB Maties 19, FNB Madibaz 0.— Maties Rugby Club (@MatiesRugby) March 12, 2018
The university on its Twitter account condemned the "disruptions" at the game.
"The incident is extremely regrettable and we assure that this is not in the spirit of Mandela University. There will be further investigation into the matter and the appropriate steps taken."
Nelson Mandela University condemns the disruptions at this evening's Varsity Cup game. The incident is extremely regrettable and we assure that this is not in the spirit of Mandela University. There will be further investigation into the matter and the appropriate steps taken.— Mandela University (@MandelaUni) March 12, 2018
The final score was Maties 19, Madibaz 0.
Organisers said they would release a statement after receiving feedback from the university.
Meanwhile at varsity cup rugby in Port Elizabeth tonight, what a disgrace! 😠 pic.twitter.com/SqBPRjgM1s— Angelique Meyer (@angiemeyer1979) March 12, 2018