Rescue workers in Zambia are searching the rubble of an explosives plant for bodies, one day after a blast killed at least 51 people.
Police say the death toll may rise because many miners at the Chinese-owned Bgrimm explosives factory are still missing.
Family members gathered at the blast site Thursday to try to identify loved ones.
Government investigators say it is still not clear how many people were working at the factory when the exposition occurred Wednesday. They also say they do not yet know what caused the blast.
The Bgrimm factory is on the grounds of the Chambishi copper mine, about 350 kilometers north of the Zambian capital, Lusaka.
Some information for this report provided AFP, AP and Reuters.
