Israel has agreed to allow some food into Gaza before a newly approved mechanism for aid deliveries is up and running later this month, the head of the newly established Gaza Humanitarian Foundation told CNN.

"To those proposing an alternative modality for aid distribution, let's not waste time. We already have a plan," he said in a statement as Israel blocked the delivery of humanitarian aid to Gaza for the 75th day in a row.

The United Nations said on Thursday it will not take part in a U.S.-backed humanitarian operation in Gaza because it is not impartial, neutral or independent, while Israel pledged to facilitate the effort without being involved in aid deliveries.