The demonstrations follow days of deadly clashes in a string of cities across the country that have left at least seven people dead, including an American, and hundreds injured. The violence - and wide expectation of more to come tomorrow during rallies that the opposition says will bring millions into the streets - has fed an impending sense of doom in the country.
Egypt has been roiled by political unrest in the two years since uprising that ousted autocrat Hosni Mubarak, but the upcoming round of protests starting tomorrow promises to be the largest and perhaps the bloodiest. The turmoil has compounded the country's social and economic woes, with crime surging, unemployment high and with shortages of basic items not uncommon.
For several days, members of the Muslim Brotherhood, the Islamist group that helped propel Morsi to power, and the president's opponents have clashed in cities in the Nile Delta, while yesterday as least five Brotherhood offices across the country were ransacked and torched.
That has all come in the buildup toward tomorrow the anniversary of Morsi's inauguration as Egypt's first freely elected leader - when opposition groups promise massive demonstrations to force the Egyptian leader from office. The June 30 protesters have vowed to remain peaceful, while the military said it would intervene if violence breaks out.
Army troops are also moving to reinforce police guarding the city's prisons to prevent a repeat of the nearly half dozen jail breaks during the chaos of the 2011 uprising. Morsi's backers yesterday staged their second mass rally in as many weeks in a Cairo suburb where they said they would stage an indefinite sit-in to counter the protests planned by the opposition outside the nearby presidential palace.