Shifa Hospital said the dead and wounded were among crowds massed at the Zikim Crossing, the main entry point for humanitarian aid to northern Gaza.

Israel’s retaliatory offensive has killed more than 60,000 Palestinians, according to Gaza’s Health Ministry. Its count doesn’t distinguish between fighters and civilians. The ministry operates under the Hamas government. The U.N. and other international organizations see it as the most reliable source of data on casualties.

Gaza’s civil defence agency said Israeli forces killed at least 30 people when they opened fire Wednesday on a crowd waiting for humanitarian aid in