Gaza's civil defense agency said Israeli forces opened fire on crowds of Palestinians trying to collect humanitarian aid on Sunday, killing 93 people and wounding dozens more.

Eighty were killed as truckloads of aid arrived in the north, while nine others were reported shot near an aid point close to Rafah in the south, where dozens of people lost their lives just 24 hours earlier. Four were killed near another aid site in Khan Yunis, also in the south, agency spokesman Mahmud Basal told AFP.

The UN's World Food Programme confirmed that its 25-truck convoy came under gunfire. The Israel Defense Forces said it fired warning shots to remove threats, but disputed the death toll.