SAN DIEGO (KGTV/CNN) – A group of hackers knocked out a number of popular online video game services including the popular Sony PlayStation Network (PSN).
Hackers calling themselves “Lizard Squad” claim responsibility for taking down PSN as well as networks for World of Warcraft, League of Legends, and other multi-player games.
Those services allow millions of gamers to play together over the Internet.
The targeted companies say hackers used a distributed denial-of-service (DDoS) attack to overwhelm the networks with web traffic.
On its Twitter account, Sony said late Sunday most of its services were restored.
In a related twist, the hackers also claim they made threats against an American Airlines flight with a Sony executive on board.
Sony Online Entertainment president John Smedley is seen here arriving in San Diego on Sunday.
His flight to San Diego from Dallas made an emergency landing in Phoenix after a bomb threat was sent to American Airlines on Twitter.
The flight landed safely in Phoenix and passengers later continued to San Diego.
The FBI says it is investigating.