The French football legend who led European football's governing body from 2007 to 2015 was held Tuesday by French anti-corruption police investigating alleged corruption in the 2010 vote to award the competition to the gas-rich Gulf state.
He denied wrongdoing and a statement from his representatives said the facts of the case were "unknown to him."
In the early hours of Wednesday, Platini's lawyer William Bourdon said he had been released without charge, adding that there has been "a lot of fuss over nothing".
