Overview

• The multi-storey prayer hall at the Al Khoziny boarding school in Sidoarjo collapsed Monday during a concrete pour as about 100 students prayed inside.
• Disaster officials now report 91 people missing and at least three students dead, with at least 80 injured treated at hospitals as figures vary across agencies.
• Rescuers have located several survivors under the debris and are supplying oxygen, water and food through small openings while avoiding heavy machinery due to unstable rubble.
• Police say two extra floors were added to a two-storey hall without permits, and investigators are examining whether the added weight and construction failure triggered the collapse.
• Most of the missing are boys aged roughly 12 to 17, while girls in another part of the complex escaped, and injuries include fractures, head wounds and at least one amputation.