Bulgaria and Estonia played out a 2-2 draw hours after Latvia had beaten Bolivia 2-1 at the Turkish resort, with all seven goals coming from the spot.

"We can confirm that FIFA has requested the match report from the federations," a FIFA spokesperson told Press Association Sport.

"At the moment we don't have much more information. We can only say we have started an investigation and we require the reports from all [four] federations."

Estonian Football Association spokesman Mihkel Uiboleht revealed on Thursday that his organisation were told about "possible manipulation" after the Latvia-Bolivia game.

"The friendly was organised by an agency with whom we will not work any more," said Uiboleht.

"We received information of possible manipulation even before the game as the same agency also organised the match between Latvia and Bolivia and there was the same scenario there."