It was clearly a Russian Kh101 missile and NOT a US supplied AIM-120 missile.
Left and right, 3D models created by Bellingcat of a Kh-101 and an AIM-120, respectively. Centre, a screenshot from a video showing the missile that hit the hospital. Note that the features of the missile that hit the hospital closely match those of the Kh-101, but not at all those of the AIM-120 model
