A commission will investigate circumstances surrounding the fighting . Authorities have been dispatched to hospitals to interview the wounded and investigate , said Adel Saeed , a spokesman for Egypt 's general prosecutor . Egypt 's military council declared three days of national mourning . Egypt 's health ministry says three people were killed in clashes . One witness says police did not step in when fighting broke out .
A commission will investigate circumstances surrounding the fighting . Egypt 's military council declared three days of national mourning . Egypt 's health ministry says three people were killed in clashes . One witness says police did not step in when fighting broke out .