The top UN expert on Palestinian rights, Francesca Albanese, said Israel was trying to make Gaza City unlivable by using unconventional weapons.

"Israel is bombing using unconventional weapons," Albanese told reporters in Geneva. "It is trying to forcibly evacuate Palestinians. Why? This is the last piece of Gaza that needs to be rendered unlivable before advancing the ethnic cleansing of that piece of land."

It is unclear whether Albanese was referring to weapons of mass destruction, which are widely considered illegal, and whether she provided proof. The Israeli mission in Geneva was not immediately available for comment.

Israel says the offensive to take control of Gaza City is part of a plan to defeat Palestinian militant group Hamas for good and that it has warned civilians to head south to a designated humanitarian zone.

The reading list is limited to null articles. Saving a new article will delete the oldest saved article.