CNN The Lead With Jake Tapper October 6, 2015 20:06:00
Inside their large compound area. this was the intensive care unit and surgery building. then the aircraft circled round again, came back and hit the same building again, circled round again and came back and hit the same building again. not any of the other buildings, they say, which had minor damage at the worst. so they say, for them that means if each air strike means checking and checking coordinates and making sure you have clearance for each strike, thats three times, at least, that error...
Source: archive.org