European stocks continued to lose steam on Tuesday, as disappointing corporate news and an unexpected U.K. manufacturing slump caused some jitters. Airline shares across Europe posted declines after Air France-KLM Group cut its full-year profit forecast to €2.2 billion to €2.3 billion, down from at least €2.5 billion, amid overcapacity on North American and Asian long-haul routes. Other carriers also declined including International Consolidated Airlines Group SA and easyjet plc in London, and Deutsche Lufthansa AG in Frankfurt. Retailer Marks & Spencer plc fell in London after posting its 12th-straight quarterly drop in non-food sales. Asian stocks were mixed. Samsung Electronics Ltd. got a slight boost after saying it “cautiously expects” a better third-quarter when it plans to introduce its curved-screen Galaxy Note 4 phone.