Thousands of activists from around the world are expected to descend on Egypt on Thursday for a “Global March to Gaza,” a movement aiming to break the Israeli blockade that has pushed the territory to the brink of famine.

Egyptian authorities on Friday detained or deported more foreign nationals seeking to join a pro-Palestinian march to Gaza.

Gaza activists from entering the country and sent them back to Germany, sources at Cairo airport said. The activists are part of a global protest campaign that plans to go to Egypt's Rafah border crossing with the Gaza Strip in a show of solidarity with the Palestinian enclave.

The United Nations General Assembly on Thursday overwhelmingly demanded an immediate, unconditional and permanent ceasefire in the war in Gaza and aid access, after the United States vetoed a similar effort in the Security Council last week.

Sources told Al Jazeera that at least 26 of the people killed on Thursday died in Israeli drone attacks while waiting for food and basic supplies being distributed by the controversial United States and Israel-backed Gaza Humanitarian Foundation (GHF).