The wind pushed flames from house to house as a group of neighbors tried to escape their blazing subdivision, abandoning their cars in a blocked road and running to an industrial outbuilding for safety. All six perished just blocks from their homes.

The group, including an 11-year-old and his parents, was among the victims whose desperate attempts to escape the Lahaina wildfire were detailed for the first time in a report released Friday. The investigation by the Fire Safety Research Institute for the Hawaii attorney general’s office delved into the conditions that fed the deadliest U.S. wildfire in more than a century and the attempts to stop its spread and evacuate the town’s residents.

It found “no evidence” of Hawaii officials making preparations for the wildfire, despite days of warnings that critical fire weather was coming, and that the lack of planning hindered efforts to evacuate Lahaina before it burned.