Israel has said its decision to launch deadly airstrikes on Gaza overnight was in response to Hamas violations of a cease-fire deal — an agreement that hinged heavily on the return of hostages’ bodies.

Since the fragile truce took hold three weeks ago, Israel has repeatedly accused Hamas of delaying the return of the remains. Hamas has insisted that it is working in good faith to recover the bodies, but says it cannot go faster because of conditions on the ground in Gaza, which has been decimated by two years of war.

On Tuesday, Israel’s military released a nearly 15-minute drone video that it said showed Hamas members staging the discovery of a deceased captive amid the ruins as observers from the Red Cross watched. The New York Times analyzed the footage and compared it with recent satellite imagery of the location and photos taken in the area.

In the video, three men, their faces covered, can be seen carrying what appears to be a white body bag out of a damaged building and placing it in what satellite images analyzed by The Times confirm was a freshly dug pit.

The three men then use shovels to bury the bag with dirt and place large rocks over it, covering it entirely, as a fourth man, dressed in black, looks on from the edge of the pit.

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