The most recent person to be diagnosed with the disease started developing symptoms on July 22 after arriving from a mining area outside the city, a health official quoted Muyembe, as saying in a statement on Tuesday.Also:
Health officials said the second case was not connected to the first patient in Goma who was a pastor who became infected during a visit to the town of Butembo, one of the epicentres of the epidemic.
Jean-Jacques Muyembe, DRC's Ebola response coordinator, said the man died on Wednesday morning, a day after the case was announced.
"The patient ... died Wednesday morning because he was already weakened and his illness was discovered late," Muyembe told DPA news agency.
The patient in his 40s may never have known he had the virus, Dr Michael Ryan, the emergencies chief at the UN's World Health Organization (WHO), said on Wednesday.
He also said the man's potential contacts were being identified and given an experimental but effective Ebola vaccine.