Israel-Gaza war live: UN says it is unsure how much aid has been delivered inside Gaza by Israeli-backed logistics group

Gaza Humanitarian Foundation says lorry loads of food have been delivered to sites in Gaza but UN humanitarian agency says it is unaware if any aid has been distributed

• Israeli-backed logistics group says Gaza operations have begun after its director resigned

Former Israeli prime minister Ehud Olmert has written a powerful opinion piece in Israeli newspaper Hareetz, saying Israel is committing war crimes in Gaza and carrying out the indiscriminate, limitless, cruel and criminal killing" of Palestinian civilians.

Olmert said that over the last year he had publicly rejected accusations of genocide and war crimes being levelled at Israel, arguing that although excessive killing happened" the Israeli government did not give orders to hit Gazan civilians indiscriminately". But he said his view has changed over recent weeks. Olmert, who served as prime minister from 2006 to 2009, wrote in the Hareetz opinion piece:

What we are doing in Gaza now is a war of devastation: indiscriminate, limitless, cruel and criminal killing of civilians.

We're not doing this due to loss of control in any specific sector, not due to some disproportionate outburst by some soldiers in some unit. Rather, it's the result of government policy - knowingly, evilly, maliciously, irresponsibly dictated. Yes, Israel is committing war crimes.