Several people have been killed and scores of others wounded in the Gaza Strip, Golan Heights, Ras Maroun in Lebanon and the Israeli-occupied West Bank, as Palestinians mark the "Nakba", or day of "catastrophe".

The "Nakba" is how Palestinians refer to the 1948 founding of the state of Israel, when an estimated 700,000 Palestinians fled or were expelled following Israel's declaration of statehood.

At least one Palestinian was killed and up to 80 others wounded in northern Gaza as Israeli troops opened fire on a march of at least 1,000 people heading towards the Erez crossing between the Gaza Strip and Israel.

Al Jazeera's Nisreen El Shamyleh reports.