BBC Verify examines the evidence on combatant deaths, as concern grows about the scale of civilian killing.

The toll of at least 30,035 killed, from Gaza’s Hamas-run health ministry, has previously been described as trustworthy by the World Health Organization’s (WHO) regional emergency director Richard Brennan.

The WHO says the ministry has “good capacity in data collection” and its previous reporting has been credible and “well developed”.

But its overall tally of those killed does not distinguish between civilians and combatants.

The Gaza authorities’ last demographic breakdown from 29 February indicated more than 70% of those killed had been women and children.