NEW YORK ( TheStreet) -- Google's ( GOOG) offices in South Korea were raided as part of an investigation by the Korean Fair Trade Commission. Google said it would cooperate with the KFTC, South Korea's antitrust regulator. "We will work with the KFTC to address any questions they may have about our business," a Google spokesman said. In April, the KFTC was asked by local Internet search companies to investigate Google over claims the search giant restricts local mobile service providers and smartphone manufacturers that have adopted its Android operating system from pre-loading rival services. Google said there are no such restrictions. "Android is an open platform, and carrier and OEM partners are free to decide which applications and services to include on their Android phones. We do not require carriers or manufacturers to include Google Search or Google applications on Android-powered devices," a spokesman told The Wall Street Journal. -- Written by Joseph Woelfel >To contact the writer of this article, click here: Joseph Woelfel >To submit a news tip, send an email to: email@example.com.