Mehedi Hasan, who worked at the New Wave Button factory on the third floor, said that though a crack had appeared in a wall Tuesday, on Wednesday morning factory supervisors asked workers to return, claiming the building was safe.

WSJ: Bangladesh Building Collapse Kills at Least 80

Mehedi Hasan, who worked at the New Wave Style factory on the third floor, said although workers were evacuated after a crack appeared in a wall on Tuesday, on Wednesday morning factory supervisors told workers to return, saying the building was safe.

WSJ: Dozens Die in Bangladesh Building Collapse

Mehedi Hasan, who worked at the New Wave Button factory on the third floor, said although workers were evacuated after a crack appeared in a wall on Tuesday, on Wednesday morning factory supervisors told workers to return, saying the building was safe.

WSJ: Dozens Die in Bangladesh Building Collapse