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".<br /><br />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.<br /><br />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.<br /><br />Al Jazeera's Nisreen El Shamyleh reports.
