GAZA CITY, Palestinian Territories (AFP) - Israeli shell fire on a house in Gaza killed one person on Friday, bringing the total death toll to more than 800 Palestinians after one of the bloodiest days of the conflict.

The tank shell hit a home in the southern city of Khan Yunis, emergency services spokesman Ashraf al-Qudra said, killing at least one man.

Nearly 100 Palestinians were killed on Thursday, according to figures from emergency services spokesman Ashraf al-Qudra, as Israel pressed on with its 18-day campaign to stamp out Gaza rocket fire.

Projectiles fired into Israel have killed three civilians - two Israelis and a Thai migrant worker - and fighting in and around Gaza has killed 32 Israeli soldiers.

It is the bloodiest conflict in the besieged Palestinian territory since a 2009 military operation there.

NGOs put the Palestinian civilian toll at around 80 per cent of total casualties, including a large number of women and children.