U.S. President Barack Obama and Palestinian President Mahmoud Abbas were scheduled to meet at the White House on Wednesday to discuss Israel's blockade of Gaza.
"President Abbas will ask for President Obama's intervention to unconditionally lift the siege on the Gaza Strip because this would be the only way to defuse tension," Nabil Abu Rdainah, a spokesman for Abbas, told Reuters.
The meeting between the two leaders comes more than a week after Israel Defense Forces commandos killed nine people during a raid on a flotilla of activists looking to to break the naval blockade of the Gaza Strip.
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Israel said its military acted in self-defense, and that the blockade continues to prevent weapons from being smuggled into the country for terrorists.
Turkey has called for an international investigation and has led the world in condemning the raid.
Obama has said he regrets the deaths, but wanted to learn all the facts leading up to the tragedy.
"The president and President Abbas will discuss steps to improve life for the people of Gaza, including U.S. support for specific projects to promote economic development and greater quality of life," a senior Obama administration official was quoted as saying.