Thousands of people have gathered in Tahrir Square in the Egyptian capital, Cairo, rallying for different causes.
Activists had called for a mass show of unity on Friday, a week after 15 people were killed in sectarian violence in the country.
But many of those gathered in the square were there to show their support for Palestinian unity, ahead of "Nakba day", marking the creation of the state of Israel and displacement of thousands of Palestinians.
Demonstrators also celebrated the reconciliation deal signed recently between Hamas, Fatah and other Palestinian factions.
Meanwhile, a few hundred Copts staged a sit-in outside the state television headquarters, calling for justice over the weekend's sectarian violence.
Footage from Tahrir Square showed people waving Palestinian flags and banners with slogans for Egyptian national unity.