Gaza: Building collapse kills 21, including 11 children as perilous conditions persist for Palestinians

• The six-storey building, which had four apartments per floor, crumbled overnight onto nearby homes and tents in the Tal al-Hawa area of Gaza City, according to the civil defence agency, which works as a rescue service under Hamas authority.
• The sudden collapse of the building, which was known to be unstable because of damage from I