The Secret World and Age of Conan developer Funcom.
According to several Norwegian news outlets, Norway's economic crime unit paid a visit to the Oslo studio to retrieve "packed boxes of seized documents" thought to be financial records involved in a suspected "infringement of the provisions of the Securities Trading Act."
Funcom acknowledged to Norwegian reporters that it was charged with breaching disclosure requirements related to The Secret World when the company failed to report company financial information between August 2011 and July 2012. This has resulted in a temporary closure of Funcom's stock during the investigation.
We've reached out to Funcom for more details.
[Thanks to everyone who sent this in.]