Dozens of protesters have been arrested in Egypt after they came out to mark the third anniversary of deadly protests.

The protests, which took place in 2011, demanding killers of peaceful protesters during the 18-day revolution be made accountable, ended with at least 51 being killed.

Previous annual commemorations had been marred with more violence and arrests.

Activists say many university students have also been detained.

Al Jazeera's Osama Bin Javaid reports.

Source: Al Jazeera