Cardinal Pierbattista Pizzaballa entered Gaza on Friday to bring aid to victims of Israel's strike on the sole Catholic church in the Palestinian enclave, while he and a Vatican official questioned Israeli explanations for the incident.

Reacting to the new GHF flag system, Ibrahiem Mohammed Abdul Raouf Al Qatrawi, a 22-year-old Palestinian, called for the total cancellation of the GHF aid system, telling ABC News on Monday that "respect and dignity" should be restored.

The GHF aid distribution scheme was established after Israel partially lifted its blockade of aid supplies into Gaza. It established four sites - called "Safe Distribution Centres (SDS)" - on the strip. Three were located in the south, near Rafah, and one in central Gaza.