(WANG HAOFEI)

Firefighters search for survivors at a burned poultry slaughterhouse in Dehui in northeast China's Jilin Province on June 3.

The fire occurred in the early morning, killing 120 people and injuring 77 others. Investigators are still trying to identify the exact cause of the blast and the fire.

The Chinese Government said on June 5 that a nationwide workplace safety overhaul will begin soon.

The overhaul will target key sectors, such as the coal mining and hazardous chemical industries, as well as labor-intensive enterprises, according to a statement released by the State Council, China's cabinet.