Low cost carrier Ryanair plans to increase frequencies on two of its newly launched routes from Zagreb. Starting September 1, the airline will double its operations to Charleroi from the existing two weekly operations to four weekly, while services to Gothenburg will be increased from three to four weekly rotations. Ryanair will station a second jet, an Airbus A320, from its Lauda Europe subsidiary, in the Croatian capital from September 1 and launch nine new routes as a result.