No final Yahoo-Google ad agreement yet - source

SAN FRANCISCO, May 5 (Reuters) - Google Inc (GOOG.O) and Yahoo Inc (YHOO.O) are still hammering out the intricacies of a potential advertising and search deal, and no final agreement has been reached yet, a person close to Google said on Monday.

The two sides are also sharing their plans for a potential deal with antitrust regulators, the source said.

If any deal is struck, it would not prevent Yahoo from pursuing other partnerships, including with Microsoft Corp (MSFT.O).

Other sources previously had told Reuters a deal between Yahoo and Google, in which Yahoo carries advertising from Google alongside its search results, could be announced this week.

(Reporting by Anupreeta Das, editing by Richard Chang)