Thousands of Bangladeshi protestors took to the streets of Dhaka Monday, demanding justice for 112 people killed in a garment factory fire.

The fire brought renewed attention to unsafe conditions in Bangladesh's factories.

Officials say the factory had no emergency exits or fire escapes. Workers who made it out of the building said they ran to the exits but found them locked from the outside.

Some of the victims were killed when they jumped from the eighth floor of the building.

The factory is said to have made products for major U.S. retailers like Wal-Mart, IKEA and others. Activists say those companies should be held responsible.

"The industry and parent brands in the U.S. have been warned again and again about the extreme danger to workers in Bangladesh and they have not taken action," Scott Nova, executive director of the Workers Rights Consortium, said.

Wal-Mart actually warned of the dangerous conditions at the factory last year in a letter posted on the website of the factory owner.