Rights groups call for accountability over 2013 Egypt sit-in killings

FILE PHOTO: A general view of Rabaa al-Adawiya mosque, the site of a sit-in ending in clashes in 2013, in Cairo August 10, 2014. REUTERS/Mohamed Abd El Ghany/File Photo

CAIRO (Reuters) - Rights groups called on Monday for accountability over the deaths of hundreds of people killed in a single day 10 years ago when Egyptian security forces dispersed a protest against the ouster of the country's first democratically elected president.

The clearing of the Rabaa al-Adawiya sit-in in Cairo on Aug. 14, 2013 marked the escalation of a crackdown against supporters of overthrown Muslim Brotherhood leader Mohamed Mursi. The crackdown later expanded to include activists and politicians from across the political spectrum.