Anger over the death of a man allegedly at the hands of two undercover police officers in the Mediterranean city of Alexandria has sparked anger across the nation and condemnation by human-rights organizations and a Facebook group dedicated to finding out what happened to Khaled Mohamed Saied.

On Sunday, security forces outside the Interior Ministry in the capital, Cairo, broke up a march by 200 protesters before allowing it to resume about 300 yards away amid tight security.

Demonstrators, carrying banners that read "Trial for Khaled Saied's murderers," were demanding an investigation into Saied's death. Protesters shouted that "Khaled was murdered" and lay the blame on Interior Minister Habib Adli.

Following his death on June 6, human-rights groups, including Amnesty International, said that Saied was arrested in an Internet cafe by two undercover policemen, who tortured and beat him to death at the entrance of a nearby building. Photos of Saied's beaten face and body spread across social-networking websites.