Microsoft Corp is in talks with start-up social networking company Foursquare about a possible investment.
The talks are at an advanced stage, but Foursquare is also talking to other potential partners.
According to Fox Business, Foursquare spokesman Brendan Lewis said via email that the talks fall squarely in the 'rumors and speculation' category.
A Microsoft spokesman declined to comment.
As social networking companies have come under increased scrutiny, particularly since the initial public offering of Facebook Inc, Foursquare has lost some of its luster.
Foursquare has raised a total of 112 million dollars, including a 41 million dollars convertible debt round in April, the report added.