U.S. spy agencies believe that the blast at a Gaza hospital a week ago was caused by a Palestinian rocket that suffered engine failure and broke apart into two pieces, with the warhead striking the hospital’s parking lot, intelligence officials said Tuesday.
Speaking to reporters by phone, the intelligence officials said they had “high confidence” in their assessment that it was not Israel that fired the rocket, but they were less certain which Palestinian militants fired the projectile on the evening of Oct. 17.
“We assess with high confidence that Israel was not responsible for the explosion at the hospital and that Palestinian militants were responsible,” an intelligence official said. “We assess with low confidence that Palestine Islamic Jihad was responsible for launching the rocket that landed on the hospital.”
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U.S. officials had indicated previously that Palestine Islamic Jihad, or PIJ, was most likely responsible, and Israel blamed the group for the blast. The militant group shares Hamas’ goal of destroying Israel, but it is smaller than Hamas, which rules the Gaza Strip.
The evidence pointing to PIJ was based on intercepted conversations between suspected “Hamas affiliated militants” who appeared to be speculating about who was behind the rocket launch, the officials said.
"We can’t confirm who they are. We can’t confirm that what they are discussing in the intercept actually took place,” the official said.
The audio was not the same as that released publicly by Israel’s military previously, and it was vetted and deemed authentic, the official said.
The explosion at al-Ahli Hospital has sparked anger across the Arab world, with protesters embracing the version of events put forward by Palestinian officials and Hamas — that Israel was responsible.
The U.S. assessment was based on intelligence, “physical activity,” open source video and images that all pointed to a rocket blast and not a bomb dropped from an aircraft or an artillery round used by Israeli forces, the officials said.
“The damage at the hospital is consistent with what we would expect to see from a rocket and inconsistent with the larger craters and broader blast effects that we would expect to see … from an air-dropped munition or an artillery round,” the official said.
The explosion resulted in only light structural damage at the hospital, and there was no observable damage to the main hospital building, which was consistent with the effects of a rocket armed with a smaller warhead, the official said.
Open source video that was geolocated and taken from four locations showed a projectile launched inside Gaza traveling northeast, and 10 seconds later, there appears to be engine trouble based on the intensity of the rocket’s plume, the official said. Seconds later, there is a flash, with one object falling and then a second.
Among the videos analyzed by the intelligence community was one that was aired on Al-Jazeera television, the official said.
U.S. intelligence assesses that the first object falling was the rocket motor and the second was the rocket’s warhead, which caused a larger explosion, the official said.
"Based on those videos, our conclusion is that there was a catastrophic motor failure that likely occurred which separated the motor and the warhead," the official said. "The warhead landed in the hospital compound, and that was the second explosion and a much bigger one."
The official added: “We can’t rule out that new information is going to come to light that would change our assessment on this. But that said, we do have high confidence in our conclusions.”
Palestinian rockets often misfire and miss their targets, the intelligence official said.
