Two dead; six injured:

Last month, a nine-storey factory complex outside Dhaka, the capital of Bangladesh, collapsed, killing 1,127 people, in one of the world's worst industrial disasters.

The collapse prompted pressure on Western retailers that rely on cheap labour in the region, where safety standards are often substandard.

The garment industry is Cambodia's biggest export earner, with more than $4bn worth of products shipped to the US and Europe in 2012.

About 500,000 people work in more than 500 garment and shoe factories throughout the country.

A series of strikes by workers has pointed to festering discontent over low wages and tough conditions.

In February 2012, three women, employees of Puma supplier Kaoway Sports, were wounded when a gunman opened fire on protesters demanding better working conditions at factories.

The shooting prompted Puma, Gap and H&M to express their "deep concern" and urge a thorough investigation.