* Shares extend losses to trade 2.9 percent lower (Adds union comment, background)
FRANKFURT, Dec 17 (Reuters) - The European Commission said on Wednesday it had approved the sale of Lufthansa 's IT infrastructure unit to IBM.
* Confirms 2014, 2015 targets (Adds detail on outlook, pilot negotiations)
BERLIN (Reuters) - Pilots at Lufthansa have called for mediation to cover all areas of their dispute with the German airline's management, not only the early retirement row that has resulted in 10 strikes this year.
* Lufthansa had sought mediation in early retirement row (Adds union comment, background)
BERLIN (Reuters) - Germany's Lufthansa reported a 2.4 percent rise in sales at its passenger business for November but said that its unit Austrian Airlines was being hit by the crisis in Russia and Ukraine.
FRANKFURT, Dec 9 (Reuters) - German airline Lufthansa estimates strikes may have cost it almost 200 million euros ($247 million) this year, after a further two walkouts by pilots last week forced the cancellation of thousands of flights, an executive said.
FRANKFURT, Dec 7 (Reuters) - Lufthansa 's supervisory board has blocked management plans to issue a convertible bond to fund the purchase of more planes, German magazine Der Spiegel reported on Sunday, without citing sources.
FRANKFURT/BERLIN (Reuters) - Pilots at Lufthansa started their second strike this week on Thursday, grounding about half of scheduled long-haul flights at the German flagship carrier, in a drawn-out dispute over an early retirement scheme.
* Dispute over early retirement scheme (Adds pilots to debate mediation offer, criticism of strikes, profit target detail)