British Airways has asked a UK court to add Air France-KLM Group, Cathay Pacific Airways and 30 other carriers as defendants in a court case over a price- fixing cartel for air cargo services. British Airways made the request in the High Court in London to defend itself against a class action suit being pursued by two flower importers who are suing the airline. British Airways in 2007 pleaded guilty in the US to plotting to set extra charges on passenger and cargo flights and was fined US$300 million. Dozens of carriers have been investigated by antitrust regulators worldwide since 2006, when the US and the European Union started probing the industry.