(ANSA) - BELGRADE, MAY 27 - Customers of the Lufthansa Group have been reassured that paraffin shortages won't cause flight cancellations this summer. "At all six of the Lufthansa Group's European hubs—Frankfurt, Munich, Zurich, Vienna, Brussels, and Rome—as well as at other airports abroad, there are no signs from our suppliers that fuel supplies are at risk this summer," stated Dieter Vranckx, a member of the board of directors. (ANSA).