"Francois-Henri Pinault and his fiancée, Salma Hayek, are happy to announce they are expecting the arrival of their first child," spokeswoman Ina Treciokas said in a one-paragraph statement.

In a brief telephone call, Treciokas said no other details, including the date the child is due to be born, would be made public.

Pinault, 44, is chief executive officer of his family's luxury goods firm PPR, whose lines also include Bottega Veneta, Alexander McQueen and Stella McCartney.

Hayek's films include Frida, for which she received an Oscar nomination, and she is executive producer of the hit US television show Ugly Betty, in which she plays a key role. Salma Hayek also portrayed Dominican national heroine Minerva Mirabal in the movie version of Julia Alvarez's historical novel, In the Time of the Butterflies.

Hayek, 40, has previously been romantically linked to actors Edward Norton and Josh Lucas.