Gaza health officials say the death toll among Palestinians from the Israeli offensive in the coastal strip has reached 501 as the two sides count their dead following the bloodiest day of fighting so far in the two-week campaign.
Ashraf al-Kidra, a Gaza health ministry official, says rescue workers near the city of Khan Younis were digging out bodies from a home flattened in an Israeli air strike early today.
He says 20 bodies were found at the site and two people were pulled alive from the rubble overnight.
Following an emergency session late yesterday, the UN Security Council Sunday expressed "serious concern" about Gaza's rising civilian death toll and demanded an immediate end to the fighting.
Twenty Israelis have also died, including 13 soldiers killed in heavy fighting yesterday.