Port Elizabeth police arrested eight NMMU students following a fees must fall protest march on Wednesday.
About 250 students marched under police escort from NMMU's main south campus to the entrance of the university's Second Avenue campus.
Stun grenades were used when the group tried to advance to the entrance of the Boardwalk where students wanted to continue their protest against what they said was "white monopoly capital."
They moved off in small groups and once again tried to enter the Boardwalk from Marine Drive where police took action.
Police spokesperson, Colonel Priscilla Naidu, said those arrested included five women and three men.
"They are being detained at the SAPS Humewood cells on charges of public violence as well as charges under the National Roads Traffic Act where they were seen blockading the road. An additional charge of obstructing the police in the performance of their duty was included for one of the students," she said.
Naidu said that they are expected to appear in court soon.
Meanwhile, stone throwing students from the Witwatersrand University on Wednesday engaged in running battles with police who in turn fired stun grenades, rubber bullets and tear gas at them.
After engaging in long meetings all morning, Wits students decided to take their protest to the streets in Braamfontein, where they were confronted by heavily armed police officers.
The police told the students they needed permission to protest on the streets. After a standoff there were scuffles that developed into running battles.
Police fired rubber bullets and stun grenades at the students who were in their hundreds. Some of the students ran away others threw stones at the police.
The students moved back to campus and gathered by the Great Hall holding stones and singing struggle songs.
Several students were injured during the standoff, however, paramedics were not allowed inside campus and on-campus medics attended to the injured students.
Students have chased some journalists away and said that they do not want any media branded cars inside campus. The students claim that the media have âmisrepresentedâ them.