A Palestinian teen died of his wounds Saturday a day after he was shot by Israeli troops during clashes on the Gaza border, the territory's Hamas-run health ministry said.
The breach comes amid another round of violent riots along the Israeli-Gaza border that have occurred nearly weekly for the past several months.
The Hamas website Safa said Friday this marks the first time all members of the political bureau have come together in Gaza.
They are considering a proposal to sign a long-term truce agreement between Hamas and Israel in exchange for economic prosperity and easing the siege on the Strip.
In one incident, several Palestinians crossed the border fence, entered Israeli territory at the Kerem Shalom crossing, and threw firebombs and stones, before fleeing back into Gaza.
On Friday, Israel said 8,000 Palestinians took part in five separate "March of Return" protests along the Gaza border.
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Al-Akhbar said the deal calls on Hamas to pledge "the end of provocations along the border, or in other words, the phenomena of the flaming kites and balloons, border crossing operations and setting fire to border posts". The ministry says that 159 Palestinians have been killed since the start of the "March of Return" protests on March 30.
Israel contends the the blockade is necessary to keep Palestinian militants from getting weapons or other materials that could be used for military purposes.
"The ship was monitored and was intercepted in accordance with global law", the army said in a statement, before the vessel, named Freedom for Gaza and carrying 12 people, was taken to the Israeli port of Ashdod.
In a statement, Hamas spokesman Fawzi Barhoum said it included Marzouk, Rishq and Badran as well as Khalil al Hayya and Rawhi Mushtaha.
The boat and another vessel, which was intercepted by Israeli forces on Sunday, set sail to Gaza from Europe last week.
The Israeli military said Saturday that it had intercepted an activist boat trying to breach a decade-old blockade of the Hamas-ruled Gaza Strip.