Sony says its online gaming and music sites have been hacked.

The company said it included a threat against a U.S. plane carrying the president of Sony Online Entertainment, that had to be diverted after a warning about explosives on board.

The American Airlines plane was en route from San Diego to Dallas, but landed in Phoenix as a precaution on Sunday.

Sony said the hacker tried to overwhelm its system with high artificial traffic, and they’re now working to restore service.

No personal information was accessed and a group called Lizard Squad is claiming responsibility for the attack.