They had fled across the border to Bangladesh amid heavy fighting between the Myanmar military and rebel insurgents in Rakhine
The workers said cracks have appeared on the walls of the second floor of ‘Knit Asia’ RMG unit in Safipur area.
The unit’s Manager Mohammad Irfanur Rahman said that the workers spotted the cracks, stopped work and started to protest around 8:00am.
The factory was shut down for the day, Rahman said, promising to 'repair' the cracks after consulting engineers and BGMEA office-bearers.
Only eight days ago, cracks were reported just before the collapse of the nine-storied Rana Plaza in Savar.
Most of those killed or injured in the collapse were garment factory workers.
The death toll in the tragedy touched 429 on Thursday morning. More than 2000 were said to be injured.