Ryanair is in trouble again over subsidies received from continental airports, with Air Berlin suing Germany's Lübeck airport over payments of up to €10m (£7.1m) made to Ryanair since 2000

Ryanair is in trouble again over subsidies received from continental airports, with Air Berlin suing Germany's Lübeck airport over payments of up to €10m (£7.1m) made to Ryanair since 2000. Air Berlin, which is competing with the low-cost airline to break into the budget carrier market in Germany, is claiming that Lübeck is distorting competition by paying unfair and illegal subsidies to its Irish rival. Backed by seven airlines, the German carrier filed a complaint against the airport's operator, Flughafen Lübeck, with the regional court in Lübeck, challenging annual payments of €2m to Ryanair. The airlines want Ryanair to pay back past subsidies. Air Berlin also said the payments were made when the airport posted losses of about €2.6m in 2002 and €3.7m in 2003. Michael O'Leary, the chairman of Ryanair, declined to comment in full yesterday. He merely said: "It makes for good press releases at this time of year." Lübeck airport, which is situated near Hamburg in northern Germany, is one of Ryanair's most important bases in the country after Frankfurt-Hahn. Europe's biggest low-fare carrier flies six routes to and from the city, including Stansted and Prestwick. The lawsuit comes as Ryanair continues to fight against a €4m fine from the European Commission for receiving illegal subsidies to fly to Charleroi airport near Brussels. In October, the Irish carrier agreed to repay the money into a blocked account but would get it back if it wins its appeal to the European Court of Justice. The carriers supporting Air Berlin's claim are members of a group of German airlines called ADL. The group includes LTU Lufttransport Unternehmen, Aero Lloyd Flugreisen, Thomas Cook's Condor, Germania, TUI's Hapag Lloyd, Britannia Airways and Fly FTI.