Singer Elvis Crespo has been questioned by police over claims he performed a sex act on a flight in America.

A female passenger claims the Grammy Award-winning singer masturbated in view of fellow passengers during the journey from Houston to Miami. 

Crespo was questioned by police on arrival into Miami, but said: "I don't recall doing that."

According to the Associated Press news agency, Crespo was not arrested and no charges have been brought against him.

The Puerto Rican star found fame in 1998 with his debut album 'Suavemente'.

His publicist in the US has yet to comment on the allegations.