Thousands of Bangladeshi garment workers blocked a major highway and clashed with police as protests spread across industrial hubs over demands to more than double the monthly minimum wage. (AFP pic)DHAKA: Garment workers in Bangladesh staged a fourth day of wage protests on Tuesday, with police firing tear gas to disperse demonstrators as unrest disrupted factory operations and transport links in the country's vital export sector.

The unrest, which began on Saturday, has intensified despite the government's move to form a six-member wage board to review pay in Bangladesh's garment sector, the world's second-largest apparel exporter after China.

It comes at a critical time for manufacturers entering the peak production season for spring and summer export orders. The industry employs about 4 million workers, supplies global brands such as H&M, Zara and Gap, and accounts for more than 80% of the country's export earnings.