HONOLULU (AP) — More than half a year after the deadliest U.S. wildfire in more than a century burned through a historic Maui town, officials are still trying to determine exactly what went wrong and how to prevent similar catastrophes in the future. But two reports released this week are filling in some of the blanks.

The most recent is a detailed timeline of the fire that tore through the heart of Lahaina on Aug. 8, 2023, killing 101 people. Released Wednesday by Hawaii Attorney General Anne Lopez, it is the first phase of a three-part comprehensive investigation being conducted by the Fire Safety Research Institute, or FSRI, with more coming in the next several months.

The previous day, the Maui Fire Department put out an after-action report produced by the Western Fire Chiefs Association. It detailed the challenges the department faced, as well as more than 100 recommendations for improvements.