CAIRO: Central Security Forces regained control over Mohamed Mahmoud Street, which leads to the Ministry of Interior. The security forces fired tear gas intensively, forcing demonstrators to retreat to Tahrir Square. Ambulances resumed treating and transferring the injured from the middle of square. One of the paramedics said most injuries were as a result of suffocation. RELATED STORIES: - In Video: Assistant Military Region claims thugs killed Tahrir demonstrators - Military police move around Tahrir Square - NCHR to form fact-finding mission investigating Tahrir clashes - Badei calls for urgent meeting for guidance bureau - Fire in National Assembly of Change headquarters - Non-stop clashes in Tahrir on Sunday Evening - El-Baradei condemns violence against demonstrators - Fire in apartment near MOI, protestors trying to put it out - Calm in Tahrir after CSF, protestors agree to ceasefire - Egypt violence rages into third day - Abu Ismail arrives in Tahrir amidst crackdown - SCAF: We apologize for Tahrir incidents