LUSAKA, March 26 (Reuters) - Four miners died in Zambia on Friday at a new concentrator expansion project following a fall of ground, Vedanta Resources' (VED.L) Konkola Copper Mines said.
Konkola said in a statement on Saturday the accident at the East Mill expansion project involved contractor workers engaged in excavation for civil construction.
The expansion project is within a large area known as the Nchanga Integrated Business Unit, near the Nchanga open pit mine.
"Investigations have been launched to ascertain the cause of the accident," the company said.
Production was not affected because the accident happened at a non-production area, mines minister Maxwell Mwale said on Friday. (Reporting By Chris Mfula; Editing by Ruth Pitchford)