Jakarta, Oct 1 (UNI) Indonesia’s disaster management agency today said that at least 91 people were trapped after a school building collapsed on September 29 in the Sidoarjo district of East Java province. Abdul Muhari, spokesperson for the National Disaster Management Agency (BNPB), said that as of last evening, the accident had left three people dead and more than 90 injured, with 26 still hospitalised. Due to concerns that the use of heavy machinery could trigger further collapse, rescue workers have focused on manual excavation. They are delivering food and water to those trapped under the rubble. Meanwhile, the BNPB is working with construction experts to draw up a safe debris-clearing plan so that heavy equipment can be used in later stages if necessary.