"We do not want a tragedy but here there is a risk that something could happen," Gagg told BBC Sport on Sunday.

"There will be a full house at Egypt's next game, so it's absolutely necessary there are changes ahead of the match."

Gagg voiced the concerns of both FIFA and CAF officials regarding the capacity of such venues as the Cairo International Stadium that hosts Egypt’s matches.

"We would all like change," Gagg said. "Myself, the President and Secretary General of CAF and the local organizing committee."

The FIFA official was amazed at the sight of Egyptian fans filling the Cairo Stadium in the hosts’ 3-1 win over Ivory Coast on Saturday.

"At the game there were people sitting on the stairs," an astonished Gagg said.

"All the stairs were occupied by people and on the walls on the upper rings, thousands and thousands of spectators were sitting on the walls because there were too many people inside the ground."