Japanese video game maker Nintendo says a website operated by its U.S. subsidiary was broken into several weeks ago, but no personal information was stolen.

The company made the announcement Sunday, saying that the break-in did not compromise any consumer information and that the security of its systems is monitored all the time.

The entertainment giant which produces the popular DS hand-held game players and the Wii game console is the latest company to be targeted by cyber attacks.

In April, hackers broke into Sony Corporation's servers and exposed personal information of more than 100 million users.

The hacker group Lulzsec claimed responsibility for the attack on Nintendo in a statement posted on its Twitter feed. The same group claimed the attacks on the Sony Pictures Entertainment servers last week.

Lulzsec says it had taken a configuration file from Nintendo, but that no harm was intended.