A deadly fire at a container depot in Bangladesh has laid bare the dangers still facing millions of the country's workers a decade after a series of tragedies in the export-focused garment industry spurred a safety revolution.

Intense scrutiny of Bangladesh and the major international clothing retailers that rely on it for supplies has helped prevent further disasters in the garment sector since a fire in 2012 and a building collapse in 2013 together killed more than 1,200 workers.

But in other industries, mainly catering to Bangladesh's booming domestic economy and without an equal emphasis on safety, hundreds have died in fires in recent years.