The cause of the blast was not immediately known.
Wednesday’s explosion took place during a demonstration marking the anniversary of Zionists’ withdrawal from the Gaza Strip in 2005.
The demonstrators said that the Israeli regime’s soldiers fired tear gas before the deadly blast, according to Aljazeera.
Witnesses told local media that when a Palestinian Explosives Engineering Unit was trying to defuse an explosive device, the Israeli regime’s forces opened fire, preventing them from escaping the blast.
Earlier in the day, participants held Palestinian flags and burned tires to celebrate the anniversary of Israel’s withdrawal.
Suhail al-Hindi, a Hamas leader, praised the end of what he described as “this cruel Israeli occupation from Gaza”.
MP/PR