Ekeng came off the bench in the 62nd minute of a televised Romanian league match only to slump seven minutes later and was immediately rushed to hospital and died there.
According to Floreasca hospital in Bucharest where he was rushed to, doctors tried for an hour to resuscitate the 26-year-old Cameroonian midfielder but failed.
As at press time, the cause of his death is still unknown with some sources citing a possible heart attack.
A statement on Dinamo’s official Facebook page on Friday evening said: ‘Dinamo tonight lost footballer Claude Patrick Ekeng Ekeng forever. On behalf of all of Dinamo, sincere condolences to the bereaved family. God rest his soul.’
Dinamo Bucharest players lit candles along with supporters of the club to honour Ekeng after he died. May his soul Rest in Peace.