Some students are said to have been picked up by police and their whereabouts are unknown.
It is a typical tactic of police to round up protestors, drive them off in police vehicles and dump them out in the bush many kilometres from any town and leave them to make their own way home.
Other times police have taken protestors to police stations and assaulted them.
The students were marching on the Swazi Parliament to protest that the University of Swaziland (UNISWA) did not open this month at the start of the academic year because there is not enough money to give scholarships to more than 500 students. In a typical year in the recent past 1,200 would get scholarships.
SWAZI STUDENTS TO MARCH