FRANKFURT/MADRID (Reuters) - German engineering group Siemens <SIEGn.DE> has hired Goldman Sachs <GS.N> to advise it on a possible deal to buy Spanish wind farm manufacturer and operator Gamesa <GAM.MC>, two people familiar with the matter said on Friday.
One of the people said it was still unclear what the structure of such a deal could be.
Siemens declined to comment on the matter.
Shares in Gamesa earlier jumped more than 20 percent after a media report that Siemens may be interested in making a takeover offer.
(Reporting by Alexander Huebner and Andres Gonzalez; Additional reporting by Jens Hack in Munich; Writing by Maria Sheahan; Editing by Victoria Bryan)