United States President Joe Biden is backing the Israeli Defence Force's account of an explosion that's reported to have killed hundreds of Palestinians at the Al-Ahli Arab hospital in Gaza City.
Mr Biden has wrapped up a brief visit to the country, where he met with his Israeli counterpart Benjamin Netanyahu.
Israeli officials blame the explosion on a misfired rocket launched by Islamic Jihad - the second largest militant group in the Gaza Strip after Hamas.
While Palestinian health officials say it was caused by an Israeli air strike.