(AP) -- Google says it will cooperate with South Korea's antitrust regulator amid a report its local offices were raided as part of an investigation.

Google Inc. said Wednesday in a statement that it will work with the regulator to address any questions it may have about its business.

Top local Internet search companies in April asked the Korea to investigate over claims it restricts local mobile service providers and smartphone manufacturers that have adopted its operating system from pre-loading rival services.

Google said there are no such restrictions.

Yonhap news agency reported the commission raided Google on Tuesday. The KFTC would neither confirm nor deny a raid. Google also did not confirm a raid.