No deadline has been set for the future of General Motors Corp.'s (GM) Adam Opel GmbH and no decision about an investor for the German carmaker has been made, a German government official said Friday.

"There is no pre-agreement regarding individual interested parties, which are currently named in media reports. The talks are continuing," Steffen Moritz, spokesman for the economics ministry, told reporters. "There are no time guidelines, dates as to when to expect certain decisions - such a deadline doesn't exist, at least from the federal government."

The comments come after press reports said Fiat SpA (F.MI) is close to a deal with Opel. The Italian carmaker's Chief Executive Sergio Marchionne has said he is open to giving Opel "a hard look" but said Fiat has "nothing to announce" regarding those reports.

Media reports also said that Austrian-Canadian automotive supplier Magna International Inc. (MGA) and Russian car manufacturer Gaz Russia (GAZA.RS) are working on a bid to take a majority stake in German automaker Opel.

-By Andrea Thomas, Dow Jones Newswires; +49-30-288-8410; andrea.thomas@dowjones.com