The second, in October 2004, was the killing of 84 Muslim demonstrators at Tak Bai, when the Army broke up a peaceful protest. Hundreds of detainees were forced at gunpoint to lie shackled and prone in Army trucks, stacked like cordwood. The trucks were delayed from moving to the detainment area for hours. The 84 victims were reported to have been asphyxiated, crushed or died of overheating. The precise nature and cause of death have been subject to controversy and doubt because of lack of transparency and absence of depth in investigations made. There are other reports of many more deaths but these have not been substantiated.