PARIS — Investigators in France detained Michel Platini, the former European soccer federation president, on Tuesday to question him about the awarding of the 2022 men’s World Cup to Qatar, a decision made almost a decade ago that continues to roil the sport.

Platini, 63, met with prosecutors in Paris to discuss the circumstances of his vote for Qatar — a desert nation smaller than Connecticut but with the largest per capita income in the world — over other venues, including the United States. While Platini is not technically under arrest, the nature of his detention meant it was up to the authorities to decide when he would be free to leave.

A spokesman for Platini, citing his lawyer William Bourdon, said that Platini was not under arrest but was being heard as a witness. In a statement, the spokesman said that other matters had also been under discussion, including the awarding of the 2016 European soccer championship to France, a decision made while Platini was in charge of the sport on the continent as UEFA president.

“He has nothing to reproach himself about,” the statement added.

Platini, a French former midfield great who won the Ballon d’Or three times during his playing career, was barred from soccer for four years in 2015 after an investigation into a payment of 2 million Swiss francs, or about $2 million, authorized by Sepp Blatter, the former president of FIFA, the world governing body of soccer. Blatter has also been barred.