美国情报部门官宣是哈马斯的分支所谓圣战队的火箭弹，下面黑体字非常重要，因为爆炸地点是大火和散状物，是地面爆炸，和空袭形成的打击完全不一样。

Officials told CNN separately that the initial evidence gathered by the US intelligence community suggests that the hospital strike came from a rocket launched by the Palestinian Islamic Jihad group. 

Among the evidence that’s been gathered is a blast analysis that suggests it was a ground explosion rather than an airstrike that hit the hospital, one of the sources said. There was no singular crater suggesting there was a bomb, but there was extensive fire damage and scattered debris that is consistent with an explosion starting from the ground level, according to the source.

That analysis is one datapoint that’s led intelligence officials to lean toward assessing that the attack on the hospital was a rocket launch gone wrong.