Gaza's civil defence agency on Saturday said Israeli attacks killed 26 people and wounded more than 100 near two aid centres in the south of the Palestinian territory.

Agency spokesman Mahmud Basal told AFP that 22 were killed near a site southwest of Khan Younis and four near another centre northwest of Rafah, blaming "Israeli gunfire" for both.

One eyewitness said he headed to the Al-Tina area of Khan Younis before dawn with five of his relatives to try to get food when "Israeli soldiers" started shooting.

"My relatives and I were unable to get anything," Abdul Aziz Abed, 37, told AFP. "Every day I go there and all we get is bullets and exhaustion instead of food."

Media restrictions in Gaza and difficulties in accessing many areas mean AFP is unable to independently verify tolls and details provided by the agency and other parties.

The Israeli war in Gaza, which began in October 2023, has created dire humanitarian conditions for the local population.

The more than two million people who live in the densely populated coastal territory are facing severe shortages of food and other essentials, and doctors have reported a spike in acute malnutrition.

The Israeli killing of people waiting for handouts in huge crowds near aid distribution centres have become a regular occurrence.

The civil defence agency reported that nine people were shot and killed near the same aid point in the Al-Shakoush area northwest of Rafah on Friday.

The US- and Israel-backed Gaza Humanitarian Foundation, which took over the running of aid distribution in late May, said 20 people died in Khan Younis on Wednesday.

The previous day, the UN said it had recorded 875 people killed in Gaza while trying to get food, including 674 "in the vicinity of GHF sites", since it began operating.

The free flow of aid into Gaza is a key demand of Hamas in indirect talks with Israel for a 60-day ceasefire in the 21-month genocidal war.