A mosque in the vicinity of Cairo's Rabaa al-Adawiya Square had so far received 310 bodies of slain supporters of ousted President Mohamed Morsi, the mosque's imam told the Anadolu Agency.
Mohamed Noseri added that hundreds of relatives of people missing in the forcible dispersal of the Rabaa al-Adawiya sit-in flocked to the mosque to search for and identify the bodies of their beloved ones.
An AA reporter on the scene said a state of shock and sadness cast its shadow on the mosque as many failed to identify their relatives whether because they were not there or because the bodies were too disfigured after being burnt.
"Many of the corpses are burnt, either completely or partially," witnesses said.
An AA reporter had earlier confirmed that more than 60 unidentified bodies of Morsi supporters were lying inside the mosque.
On Wednesday, security forces dispersed two sit-ins staged by Morsi supporters in Rabaa al-Adawiya Square and Giza's Nahda Square.
The Health Ministry said at least 278 Egyptians were killed and 2,001 others injured in violence that engulfed the country, including 61 in Rabaa and 21 in Nahda squares.
But Youssef Talaat, a member of the National Alliance for the Defense of Legitimacy, a coalition Islamist parties and figures supportive of Morsi, put the toll at 2,600.