Oct. 3 (Bloomberg) -- Yahoo! Inc. and Google Inc. agreed to delay the start of a planned Internet-advertising partnership until U.S. regulators can wrap up an investigation into the deal, according to a person with knowledge of the decision.

Google and the Justice Department reached the agreement at a meeting today, said the person, who asked not to be named because the talks are private. There is no date set for the probe to conclude, the person said.

To contact the reporter on this story: Crayton Harrison in Dallas at tharrison5@bloomberg.net.

Last Updated: October 3, 2008 16:00 EDT