FERRY operator Stena Line is to add extra freight capacity to its Belfast to Liverpool service. The Stena Hibernia will be introduced onto the route from November 5 and will initially operate eight sailings per week. Stena Line acquired the Belfast-Liverpool and Belfast - Heysham services in July 2011 and since then has undertaken an investment programme to increase capacity and improve service levels. Paul Grant, Stena Line's route manager Irish Sea north said: "The freight market is showing signs of recovery and it's important that Stena Line adds capacity to accommodate the expected growth. Belfast continues to develop as a key freight hub for Stena Line with 11 daily departures to Cairnryan, Heysham and Liverpool and we are confident customers will react positively to our expanded service."