(Reuters) - Air France-KLM announced on Friday a firm order for three Airbus A350-900 passenger aircraft for Air France and four Airbus A350F freighters, to be operated by Martinair on behalf of KLM Cargo.

The Airbus A350s will replace previous generation aircraft and will be based at Paris-Charles de Gaulle airport, Air France-KLM said in a press release.

The A350Fs will replace 4 Boeing 747Fs currently operated by KLM Cargo and Martinair. They will be based at Amsterdam Schiphol airport.

(Written by Kate Entringer, edited by Blandine Hénault)