Israeli bombing in Gaza has intensified, with the Palestinian death toll now reaching more than 500, mostly civilians.
Artillery, tanks and jets pounded targets despite growing calls for a ceasefire.
Israel says it killed 10 militants who tunneled across the border from Gaza, and Palestinian officials accuse the Israeli army of shelling a hospital.
The third floor of the Al-Aqsa hospital is reported to have been hit, killing four people and wounding 16.
Earlier the Palestinians say 28 members of the same family were killed in a missile strike.
Hamas has been launching a volley of rockets at Israel, but most of them have been
intercepted.
