Ekeng fell to the ground seven minutes after coming on as a substitute in the 62nd minute during Dinamo's match against Viitorul Constanta.
The 26-year-old was rushed to a nearby hospital, where he was later pronounced dead, with the cause of the incident yet to be confirmed.
"Resuscitation attempts were made for an hour and half without success," Dinamo team doctor Liviu Paltinean said.
A statement on Dinamo's official Facebook page read: "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.
" Ekeng made his Cameroon senior debut as a second half substitute in the 1-1 draw against DR Congo in his home city of Yaounde last year.
"What a tragedy. We have just learned of the death of our international footballer Patrick Ekeng on the field during a league match between Dinamo Bucharest and Viitorul," said a statement the Cameroon Football Federation's official website.
"Cameroon and the great family of Cameroonian football are in mourning. Pending an official report on this tragic incident, we have lost a son and a brother.
"The president and the executive committee of Fecafoot present their sincere condolences to his family and relatives. RIP Ekeng Ekeng, RIP indomitable lion."
In 2003, another Cameroon midfielder, Marc-Vivien Foe, collapsed and died during an international match against Colombia.
Last week Bidvest Wits midfielder Papy Faty collapsed under no pressure in the 20th minute during their 1-1 draw against Chippa United at the Bidvest Stadium, but astoundingly came back onto the pitch after two minutes of treatment.
Article by: Staff Reporter
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