Jakarta, Oct. 1 -- Indonesia's Coordinating Minister for Infrastructure and Regional Development Agus Harimurti Yudhoyono (AHY) on Wednesday pledged to investigate the collapse of a prayer room at the Al Khoziny Islamic boarding school in Sidoarjo, East Java, that killed and trapped several people.

"We deeply regret the collapse of the Islamic boarding school building. We will investigate everything," AHY said in Jakarta.

He said the incident underscored the urgent need to ensure construction quality. Poorly built structures, he added, not only reduce functionality but also pose risks to safety.

"We will investigate further and ensure such an incident does not recur," the minister said.

The National Search and Rescue Agency (Basarnas)...