The BBC has been looking in detail at how the casualty figures are totalled.

By BBC Verify team

BBC News

In any warzone, counting the dead is a challenge. Gaza is no different.

As battles there intensify, the chaotic situation - with bombardment by Israeli forces, on-the-ground fighting, communications blackouts, fuel shortages and crumbling infrastructure - makes getting accurate information on the numbers of people who have died extremely demanding.

And Palestinian officials have said there are now “significant difficulties” in obtaining updated information because of the interruption of communications in the Gaza Strip.

The health ministry is Gaza’s official source for death numbers - which it updates regularly. On Monday evening, it said 11,240 people had been killed, including 4,630 children, since the Hamas attacks on Israel on 7 October which prompted the current war.

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