An official with the U.S. Office of the Director of Intelligence told reporters Tuesday that the office has updated its assessment of last week’s explosion of al-Ahli Hospital in Gaza, which killed hundreds, and stated “with high confidence that Israel was not responsible for the explosion.”

The official added, “We assess with low confidence that Palestine Islamic Jihad, PIJ, was responsible for launching the rocket that landed on the hospital,” the official added, noting that they suspect based on their analysis that the rocket responsible likely suffered a “catastrophic motor failure.”

The intelligence official said they were drawing on “intelligence, missile activity, open-source video and images of the incident,” including an examination of the blast effects.

“If an Israeli munition was responsible for this blast, we would expect that Palestinian militants would be very directly and clearly showing what they thought was an Israeli munition,” the official said. “We’ve looked at all of the images and in none of them do we assess that there are remnants, Israeli munitions.”

-ABC News’ Cindy Smith