Updated

Police have fired rubber bullets and tear gas to disperse thousands of garment workers who rampaged through industrial towns in Bangladesh to protest the killing of two factory workers during a demonstration for higher wages.

Police official Mohammad Nazrul Islam says at least 30 people were injured in Tuesday's violence.

The two factory workers died earlier Tuesday, a day after they were seriously wounded by rubber bullets fired by police outside the capital, Dhaka.

Garment workers have been protesting for more than a month to press for a wage hike.

Workers in Bangladesh are poorly paid and are forced to work in poor and unsafe working conditions in an industry that earns up to $20 billion a year — about 70 percent of the country's export earnings.