Indonesia's stock exchange evacuated people from the vicinity after a floor collapsed during the midday trading break on Monday(15/1). The floor collapsed into the ground level of the bourses Tower 2, spokesman Rheza Andhika said by phone, adding that it wasnt an explosion. Footage aired on Indonesian local television MetroTV showed several people lying on the ground at the entrance of the building. The situation remains unclear, with employees still being accounted for, said Friderica Widyasari Dewi, president director at Indonesia Central Securities Depository, which is based at the stock exchanges building. The stock exchange building also houses the World Banks local office, according to the bourses website. The benchmark stock index was little changed at 6,372.785 before the lunch break// Voi.JP