Two days after a boarding school came crashing down in East Java, rescuers are still digging. At least 91 children remain trapped under the rubble.

The Al Khoziny Islamic boarding school in Sidoarjo collapsed on Monday. Officials say the building gave way during illegal construction work.

Rescue crews are now battling against time. “There are still 91 students suspected of being hoarded. Every second counts,” Indonesia’s disaster agency said in a statement.

The collapse killed three people, including a 13-year-old boy. More than 100 others were dragged from the wreckage in the first hours. Many had broken bones, head wounds, and crushed limbs.

Witnesses say the walls buckled and the roof fell without warning. “It was like the earth swallowed the building,” one survivor told Kompas.

There are still glimmers of hope. At least six students have been pulled out alive since Tuesday. Rescuers are cutting tunnels into the debris to reach voices heard inside.

“We listen for cries, tapping, anything,” said Laksita Rini, head of Surabaya’s fire and rescue. “That’s our guide.”

Parents outside the site are desperate. One father clutched a photo of his son. “He’s still in there,” he said through tears. “I won’t leave until I see him.”

The school collapse has shocked Indonesia. Poor construction and weak oversight have caused deadly building failures before.

President Prabowo Subianto called the disaster a “national tragedy.” He offered prayers for the victims and their families.

Crews are working on 15 separate points in the ruins. Officials believe at least six of those areas may hold survivors. Soldiers, police, firefighters, and volunteers are all taking shifts around the clock.

“Every hour that passes makes survival harder,” warned Air Vice Marshal Mohammad Syafii, head of the national search agency.

For the families waiting at the site, hope is fading — but not gone. One mother whispered, staring at the wreckage: “I believe my son is alive. I have to believe.”