Video game maker Activision Blizzard has told state authorities it is laying off 479 workers at the Blizzard Entertainment headquarters campus in Irvine.
The notice to California employment officials did not specify who would be affected by the cuts. They appear to be the largest tech layoffs in Orange County in several years.
Activision Blizzard of Santa Monica and its Blizzard Entertainment unit were recently purchased by Microsoft Inc., which had already announced widespread layoffs among the video game staff.