Israel has said it is investigating footage that appears to show unarmed Palestinians in southern Gaza being targeted and killed by drones.
A video obtained by the Al Jazeera TV channel showed four Palestinian men being followed by drones as they walked in an open area on bulldozed tracks past half-destroyed houses in the area of Khan Younis.
A missile is then seen hitting the group, instantly killing two people.
The drone zooms in to show two bloodied, contorted bodies on the ground. A third man who wears flip-flops is then seen walking away as another projectile is fired directly towards him.
The fourth man is seen later in the footage, staggering around as he falls on to the ground and starts crawling when a missile hits him, leaving a cloud of smoke and a dead body.