Shortly before 7 p.m. Tuesday, a volley of rockets lit up the darkened sky over Gaza. Videos analyzed by The Associated Press show one veering off course, breaking up in the air before crashing to the ground.

Seconds later, the videos show a large explosion in the same area – the site of Gaza's al-Ahli Arab Hospital.

Who is to blame for the fiery explosion has set off intense debate and finger pointing between the Israeli government and Palestinian militants, further escalating tensions in their two week-long war.

The AP analyzed more than a dozen videos from the moments before, during and aft...