US President Barack Obama says the United States is planning an aid package worth $US400 million for the people of Gaza.
He describes humanitarian conditions there as unsustainable and says it is time "to move forward on a two-state solution".
Mr Obama was speaking after talks in Washington with Palestinian leader Mahmoud Abbas, who called for an end to the Israeli blockade of Gaza.
The BBC reports the White House visit was scheduled before nine people were killed on 31 May in an Israeli raid on a flotilla trying to break the blockade.
Mr Obama urged both Israel and the Palestinians to make concessions and return to stalled peace talks.
Indirect talks between Israel and the Palestinians resumed in May after a break of nearly two years. The discussions are due to last four months.